Home / 90,395.61-124,590.15-60,126.81

Finding the Fourth Proportional to 90,395.61, 124,590.15 and 60,126.81

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Solution

The fourth proportional to 90,395.61, 124,590.15 and 60,126.81 is: 82,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,395.61 : 124,590.15 = 60,126.81 : x
  2. Step 2: Convert to fraction form
    90,395.61/124,590.15 = 60,126.81/x
  3. Step 3: Cross multiply
    90,395.61x = 124,590.15 × 60,126.81
  4. Step 4: Simplify right side
    90,395.61x = 7,491,208,276.92
  5. Step 5: Solve for x
    x = 7,491,208,276.92/90,395.61
  6. Step 6: Final answer
    x = 82,871.37

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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.