Home / 81,295.35-112,138.47-53,700.18

Finding the Fourth Proportional to 81,295.35, 112,138.47 and 53,700.18

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Solution

The fourth proportional to 81,295.35, 112,138.47 and 53,700.18 is: 74,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,295.35 : 112,138.47 = 53,700.18 : x
  2. Step 2: Convert to fraction form
    81,295.35/112,138.47 = 53,700.18/x
  3. Step 3: Cross multiply
    81,295.35x = 112,138.47 × 53,700.18
  4. Step 4: Simplify right side
    81,295.35x = 6,021,856,023.92
  5. Step 5: Solve for x
    x = 6,021,856,023.92/81,295.35
  6. Step 6: Final answer
    x = 74,073.81

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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.