Home / 81,292.14-112,221.50-61,156.68

Finding the Fourth Proportional to 81,292.14, 112,221.50 and 61,156.68

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Solution

The fourth proportional to 81,292.14, 112,221.50 and 61,156.68 is: 84,425.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.14 : 112,221.50 = 61,156.68 : x
  2. Step 2: Convert to fraction form
    81,292.14/112,221.50 = 61,156.68/x
  3. Step 3: Cross multiply
    81,292.14x = 112,221.50 × 61,156.68
  4. Step 4: Simplify right side
    81,292.14x = 6,863,094,364.62
  5. Step 5: Solve for x
    x = 6,863,094,364.62/81,292.14
  6. Step 6: Final answer
    x = 84,425.07

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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.