Home / 90,800.29-125,366.13-56,822.51

Finding the Fourth Proportional to 90,800.29, 125,366.13 and 56,822.51

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Solution

The fourth proportional to 90,800.29, 125,366.13 and 56,822.51 is: 78,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,800.29 : 125,366.13 = 56,822.51 : x
  2. Step 2: Convert to fraction form
    90,800.29/125,366.13 = 56,822.51/x
  3. Step 3: Cross multiply
    90,800.29x = 125,366.13 × 56,822.51
  4. Step 4: Simplify right side
    90,800.29x = 7,123,618,489.00
  5. Step 5: Solve for x
    x = 7,123,618,489.00/90,800.29
  6. Step 6: Final answer
    x = 78,453.70

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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.