Home / 90,837.60-136,214.80-48,711.20

Finding the Fourth Proportional to 90,837.60, 136,214.80 and 48,711.20

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Solution

The fourth proportional to 90,837.60, 136,214.80 and 48,711.20 is: 73,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837.60 : 136,214.80 = 48,711.20 : x
  2. Step 2: Convert to fraction form
    90,837.60/136,214.80 = 48,711.20/x
  3. Step 3: Cross multiply
    90,837.60x = 136,214.80 × 48,711.20
  4. Step 4: Simplify right side
    90,837.60x = 6,635,186,365.76
  5. Step 5: Solve for x
    x = 6,635,186,365.76/90,837.60
  6. Step 6: Final answer
    x = 73,044.49

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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.