Home / 88,402.26-121,686.96-77,052

Finding the Fourth Proportional to 88,402.26, 121,686.96 and 77,052

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Solution

The fourth proportional to 88,402.26, 121,686.96 and 77,052 is: 106,063.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,402.26 : 121,686.96 = 77,052 : x
  2. Step 2: Convert to fraction form
    88,402.26/121,686.96 = 77,052/x
  3. Step 3: Cross multiply
    88,402.26x = 121,686.96 × 77,052
  4. Step 4: Simplify right side
    88,402.26x = 9,376,223,641.92
  5. Step 5: Solve for x
    x = 9,376,223,641.92/88,402.26
  6. Step 6: Final answer
    x = 106,063.17

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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.