Home / 83,617.60-125,426.40-31,021.60

Finding the Fourth Proportional to 83,617.60, 125,426.40 and 31,021.60

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Solution

The fourth proportional to 83,617.60, 125,426.40 and 31,021.60 is: 46,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,617.60 : 125,426.40 = 31,021.60 : x
  2. Step 2: Convert to fraction form
    83,617.60/125,426.40 = 31,021.60/x
  3. Step 3: Cross multiply
    83,617.60x = 125,426.40 × 31,021.60
  4. Step 4: Simplify right side
    83,617.60x = 3,890,927,610.24
  5. Step 5: Solve for x
    x = 3,890,927,610.24/83,617.60
  6. Step 6: Final answer
    x = 46,532.40

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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.