Home / 42,869.64-64,200.14-29,685

Finding the Fourth Proportional to 42,869.64, 64,200.14 and 29,685

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Solution

The fourth proportional to 42,869.64, 64,200.14 and 29,685 is: 44,455.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,869.64 : 64,200.14 = 29,685 : x
  2. Step 2: Convert to fraction form
    42,869.64/64,200.14 = 29,685/x
  3. Step 3: Cross multiply
    42,869.64x = 64,200.14 × 29,685
  4. Step 4: Simplify right side
    42,869.64x = 1,905,781,155.90
  5. Step 5: Solve for x
    x = 1,905,781,155.90/42,869.64
  6. Step 6: Final answer
    x = 44,455.26

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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.