Home / 89,125.60-133,645.20-49,640.80

Finding the Fourth Proportional to 89,125.60, 133,645.20 and 49,640.80

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Solution

The fourth proportional to 89,125.60, 133,645.20 and 49,640.80 is: 74,437.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,125.60 : 133,645.20 = 49,640.80 : x
  2. Step 2: Convert to fraction form
    89,125.60/133,645.20 = 49,640.80/x
  3. Step 3: Cross multiply
    89,125.60x = 133,645.20 × 49,640.80
  4. Step 4: Simplify right side
    89,125.60x = 6,634,254,644.16
  5. Step 5: Solve for x
    x = 6,634,254,644.16/89,125.60
  6. Step 6: Final answer
    x = 74,437.14

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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.