Home / 81,447.06-112,281.30-59,898.72

Finding the Fourth Proportional to 81,447.06, 112,281.30 and 59,898.72

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Solution

The fourth proportional to 81,447.06, 112,281.30 and 59,898.72 is: 82,575.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,447.06 : 112,281.30 = 59,898.72 : x
  2. Step 2: Convert to fraction form
    81,447.06/112,281.30 = 59,898.72/x
  3. Step 3: Cross multiply
    81,447.06x = 112,281.30 × 59,898.72
  4. Step 4: Simplify right side
    81,447.06x = 6,725,506,149.94
  5. Step 5: Solve for x
    x = 6,725,506,149.94/81,447.06
  6. Step 6: Final answer
    x = 82,575.19

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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.