Home / 90,420.60-124,755.39-52,177.48

Finding the Fourth Proportional to 90,420.60, 124,755.39 and 52,177.48

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Solution

The fourth proportional to 90,420.60, 124,755.39 and 52,177.48 is: 71,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,420.60 : 124,755.39 = 52,177.48 : x
  2. Step 2: Convert to fraction form
    90,420.60/124,755.39 = 52,177.48/x
  3. Step 3: Cross multiply
    90,420.60x = 124,755.39 × 52,177.48
  4. Step 4: Simplify right side
    90,420.60x = 6,509,421,866.62
  5. Step 5: Solve for x
    x = 6,509,421,866.62/90,420.60
  6. Step 6: Final answer
    x = 71,990.47

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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.