Home / 90,539.32-124,950.56-52,311.78

Finding the Fourth Proportional to 90,539.32, 124,950.56 and 52,311.78

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Solution

The fourth proportional to 90,539.32, 124,950.56 and 52,311.78 is: 72,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,539.32 : 124,950.56 = 52,311.78 : x
  2. Step 2: Convert to fraction form
    90,539.32/124,950.56 = 52,311.78/x
  3. Step 3: Cross multiply
    90,539.32x = 124,950.56 × 52,311.78
  4. Step 4: Simplify right side
    90,539.32x = 6,536,386,205.60
  5. Step 5: Solve for x
    x = 6,536,386,205.60/90,539.32
  6. Step 6: Final answer
    x = 72,193.90

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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.