Home / 81,320.29-112,272.94-52,260.45

Finding the Fourth Proportional to 81,320.29, 112,272.94 and 52,260.45

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Solution

The fourth proportional to 81,320.29, 112,272.94 and 52,260.45 is: 72,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,320.29 : 112,272.94 = 52,260.45 : x
  2. Step 2: Convert to fraction form
    81,320.29/112,272.94 = 52,260.45/x
  3. Step 3: Cross multiply
    81,320.29x = 112,272.94 × 52,260.45
  4. Step 4: Simplify right side
    81,320.29x = 5,867,433,805.86
  5. Step 5: Solve for x
    x = 5,867,433,805.86/81,320.29
  6. Step 6: Final answer
    x = 72,152.15

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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.