Home / 83,120.70-124,693.36-30,526.08

Finding the Fourth Proportional to 83,120.70, 124,693.36 and 30,526.08

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Solution

The fourth proportional to 83,120.70, 124,693.36 and 30,526.08 is: 45,793.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.70 : 124,693.36 = 30,526.08 : x
  2. Step 2: Convert to fraction form
    83,120.70/124,693.36 = 30,526.08/x
  3. Step 3: Cross multiply
    83,120.70x = 124,693.36 × 30,526.08
  4. Step 4: Simplify right side
    83,120.70x = 3,806,399,482.83
  5. Step 5: Solve for x
    x = 3,806,399,482.83/83,120.70
  6. Step 6: Final answer
    x = 45,793.64

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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.