Home / 90,395.42-124,590.02-60,126.66

Finding the Fourth Proportional to 90,395.42, 124,590.02 and 60,126.66

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Solution

The fourth proportional to 90,395.42, 124,590.02 and 60,126.66 is: 82,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,395.42 : 124,590.02 = 60,126.66 : x
  2. Step 2: Convert to fraction form
    90,395.42/124,590.02 = 60,126.66/x
  3. Step 3: Cross multiply
    90,395.42x = 124,590.02 × 60,126.66
  4. Step 4: Simplify right side
    90,395.42x = 7,491,181,771.93
  5. Step 5: Solve for x
    x = 7,491,181,771.93/90,395.42
  6. Step 6: Final answer
    x = 82,871.25

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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.