Home / 88,531.32-122,119.50-52,697.40

Finding the Fourth Proportional to 88,531.32, 122,119.50 and 52,697.40

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Solution

The fourth proportional to 88,531.32, 122,119.50 and 52,697.40 is: 72,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,531.32 : 122,119.50 = 52,697.40 : x
  2. Step 2: Convert to fraction form
    88,531.32/122,119.50 = 52,697.40/x
  3. Step 3: Cross multiply
    88,531.32x = 122,119.50 × 52,697.40
  4. Step 4: Simplify right side
    88,531.32x = 6,435,380,139.30
  5. Step 5: Solve for x
    x = 6,435,380,139.30/88,531.32
  6. Step 6: Final answer
    x = 72,690.43

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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.