Home / 83,478.31-125,258.58-39,097.40

Finding the Fourth Proportional to 83,478.31, 125,258.58 and 39,097.40

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Solution

The fourth proportional to 83,478.31, 125,258.58 and 39,097.40 is: 58,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,478.31 : 125,258.58 = 39,097.40 : x
  2. Step 2: Convert to fraction form
    83,478.31/125,258.58 = 39,097.40/x
  3. Step 3: Cross multiply
    83,478.31x = 125,258.58 × 39,097.40
  4. Step 4: Simplify right side
    83,478.31x = 4,897,284,179.40
  5. Step 5: Solve for x
    x = 4,897,284,179.40/83,478.31
  6. Step 6: Final answer
    x = 58,665.35

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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.