Home / 71,438.36-98,581.32-39,606.96

Finding the Fourth Proportional to 71,438.36, 98,581.32 and 39,606.96

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Solution

The fourth proportional to 71,438.36, 98,581.32 and 39,606.96 is: 54,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,438.36 : 98,581.32 = 39,606.96 : x
  2. Step 2: Convert to fraction form
    71,438.36/98,581.32 = 39,606.96/x
  3. Step 3: Cross multiply
    71,438.36x = 98,581.32 × 39,606.96
  4. Step 4: Simplify right side
    71,438.36x = 3,904,506,397.99
  5. Step 5: Solve for x
    x = 3,904,506,397.99/71,438.36
  6. Step 6: Final answer
    x = 54,655.60

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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.