Home / 84,341.77-116,478.80-72,956.61

Finding the Fourth Proportional to 84,341.77, 116,478.80 and 72,956.61

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Solution

The fourth proportional to 84,341.77, 116,478.80 and 72,956.61 is: 100,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,341.77 : 116,478.80 = 72,956.61 : x
  2. Step 2: Convert to fraction form
    84,341.77/116,478.80 = 72,956.61/x
  3. Step 3: Cross multiply
    84,341.77x = 116,478.80 × 72,956.61
  4. Step 4: Simplify right side
    84,341.77x = 8,497,898,384.87
  5. Step 5: Solve for x
    x = 8,497,898,384.87/84,341.77
  6. Step 6: Final answer
    x = 100,755.51

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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.