Home / 49,368.80-74,053.20-42,005.90

Finding the Fourth Proportional to 49,368.80, 74,053.20 and 42,005.90

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Solution

The fourth proportional to 49,368.80, 74,053.20 and 42,005.90 is: 63,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,368.80 : 74,053.20 = 42,005.90 : x
  2. Step 2: Convert to fraction form
    49,368.80/74,053.20 = 42,005.90/x
  3. Step 3: Cross multiply
    49,368.80x = 74,053.20 × 42,005.90
  4. Step 4: Simplify right side
    49,368.80x = 3,110,671,313.88
  5. Step 5: Solve for x
    x = 3,110,671,313.88/49,368.80
  6. Step 6: Final answer
    x = 63,008.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.