Home / 72,543,875.04-99,940,267.68-50,479,429.92

Finding the Fourth Proportional to 72,543,875.04, 99,940,267.68 and 50,479,429.92

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Solution

The fourth proportional to 72,543,875.04, 99,940,267.68 and 50,479,429.92 is: 69,543,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,543,875.04 : 99,940,267.68 = 50,479,429.92 : x
  2. Step 2: Convert to fraction form
    72,543,875.04/99,940,267.68 = 50,479,429.92/x
  3. Step 3: Cross multiply
    72,543,875.04x = 99,940,267.68 × 50,479,429.92
  4. Step 4: Simplify right side
    72,543,875.04x = 5,044,927,738,538,602
  5. Step 5: Solve for x
    x = 5,044,927,738,538,602/72,543,875.04
  6. Step 6: Final answer
    x = 69,543,124.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.