Home / 83,881.31-115,759.40-48,078.23

Finding the Fourth Proportional to 83,881.31, 115,759.40 and 48,078.23

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Solution

The fourth proportional to 83,881.31, 115,759.40 and 48,078.23 is: 66,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,881.31 : 115,759.40 = 48,078.23 : x
  2. Step 2: Convert to fraction form
    83,881.31/115,759.40 = 48,078.23/x
  3. Step 3: Cross multiply
    83,881.31x = 115,759.40 × 48,078.23
  4. Step 4: Simplify right side
    83,881.31x = 5,565,506,238.67
  5. Step 5: Solve for x
    x = 5,565,506,238.67/83,881.31
  6. Step 6: Final answer
    x = 66,349.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.