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Finding the Fourth Proportional to 89,645.60, 134,468.40 and 58,152.80

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Solution

The fourth proportional to 89,645.60, 134,468.40 and 58,152.80 is: 87,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,645.60 : 134,468.40 = 58,152.80 : x
  2. Step 2: Convert to fraction form
    89,645.60/134,468.40 = 58,152.80/x
  3. Step 3: Cross multiply
    89,645.60x = 134,468.40 × 58,152.80
  4. Step 4: Simplify right side
    89,645.60x = 7,819,713,971.52
  5. Step 5: Solve for x
    x = 7,819,713,971.52/89,645.60
  6. Step 6: Final answer
    x = 87,229.20

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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.