Home / 71,267.04-98,349.39-39,438.90

Finding the Fourth Proportional to 71,267.04, 98,349.39 and 39,438.90

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Solution

The fourth proportional to 71,267.04, 98,349.39 and 39,438.90 is: 54,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,267.04 : 98,349.39 = 39,438.90 : x
  2. Step 2: Convert to fraction form
    71,267.04/98,349.39 = 39,438.90/x
  3. Step 3: Cross multiply
    71,267.04x = 98,349.39 × 39,438.90
  4. Step 4: Simplify right side
    71,267.04x = 3,878,791,757.27
  5. Step 5: Solve for x
    x = 3,878,791,757.27/71,267.04
  6. Step 6: Final answer
    x = 54,426.17

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1.5x scale

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.