Home / 99,635.04-137,493.12-54,312.30

Finding the Fourth Proportional to 99,635.04, 137,493.12 and 54,312.30

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Solution

The fourth proportional to 99,635.04, 137,493.12 and 54,312.30 is: 74,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,635.04 : 137,493.12 = 54,312.30 : x
  2. Step 2: Convert to fraction form
    99,635.04/137,493.12 = 54,312.30/x
  3. Step 3: Cross multiply
    99,635.04x = 137,493.12 × 54,312.30
  4. Step 4: Simplify right side
    99,635.04x = 7,467,567,581.38
  5. Step 5: Solve for x
    x = 7,467,567,581.38/99,635.04
  6. Step 6: Final answer
    x = 74,949.21

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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.