Home / 72,417.14-99,876.47-50,977.92

Finding the Fourth Proportional to 72,417.14, 99,876.47 and 50,977.92

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Solution

The fourth proportional to 72,417.14, 99,876.47 and 50,977.92 is: 70,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417.14 : 99,876.47 = 50,977.92 : x
  2. Step 2: Convert to fraction form
    72,417.14/99,876.47 = 50,977.92/x
  3. Step 3: Cross multiply
    72,417.14x = 99,876.47 × 50,977.92
  4. Step 4: Simplify right side
    72,417.14x = 5,091,494,442.65
  5. Step 5: Solve for x
    x = 5,091,494,442.65/72,417.14
  6. Step 6: Final answer
    x = 70,307.87

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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.