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Finding the Fourth Proportional to 85,599.96, 118,159.68 and 64,440.60

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Solution

The fourth proportional to 85,599.96, 118,159.68 and 64,440.60 is: 88,951.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,599.96 : 118,159.68 = 64,440.60 : x
  2. Step 2: Convert to fraction form
    85,599.96/118,159.68 = 64,440.60/x
  3. Step 3: Cross multiply
    85,599.96x = 118,159.68 × 64,440.60
  4. Step 4: Simplify right side
    85,599.96x = 7,614,280,675.01
  5. Step 5: Solve for x
    x = 7,614,280,675.01/85,599.96
  6. Step 6: Final answer
    x = 88,951.92

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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.