Home / 90,503.04-124,899.12-58,699.20

Finding the Fourth Proportional to 90,503.04, 124,899.12 and 58,699.20

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Solution

The fourth proportional to 90,503.04, 124,899.12 and 58,699.20 is: 81,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,503.04 : 124,899.12 = 58,699.20 : x
  2. Step 2: Convert to fraction form
    90,503.04/124,899.12 = 58,699.20/x
  3. Step 3: Cross multiply
    90,503.04x = 124,899.12 × 58,699.20
  4. Step 4: Simplify right side
    90,503.04x = 7,331,478,424.70
  5. Step 5: Solve for x
    x = 7,331,478,424.70/90,503.04
  6. Step 6: Final answer
    x = 81,008.09

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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.