Home / 83,078.07-124,543.40-30,475.46

Finding the Fourth Proportional to 83,078.07, 124,543.40 and 30,475.46

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Solution

The fourth proportional to 83,078.07, 124,543.40 and 30,475.46 is: 45,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,078.07 : 124,543.40 = 30,475.46 : x
  2. Step 2: Convert to fraction form
    83,078.07/124,543.40 = 30,475.46/x
  3. Step 3: Cross multiply
    83,078.07x = 124,543.40 × 30,475.46
  4. Step 4: Simplify right side
    83,078.07x = 3,795,516,629.87
  5. Step 5: Solve for x
    x = 3,795,516,629.87/83,078.07
  6. Step 6: Final answer
    x = 45,686.14

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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.