Home / 85,512.60-128,257.35-22,337.15

Finding the Fourth Proportional to 85,512.60, 128,257.35 and 22,337.15

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Solution

The fourth proportional to 85,512.60, 128,257.35 and 22,337.15 is: 33,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.60 : 128,257.35 = 22,337.15 : x
  2. Step 2: Convert to fraction form
    85,512.60/128,257.35 = 22,337.15/x
  3. Step 3: Cross multiply
    85,512.60x = 128,257.35 × 22,337.15
  4. Step 4: Simplify right side
    85,512.60x = 2,864,903,024.27
  5. Step 5: Solve for x
    x = 2,864,903,024.27/85,512.60
  6. Step 6: Final answer
    x = 33,502.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.