Home / 77,020.80-106,257.12-59,084.16

Finding the Fourth Proportional to 77,020.80, 106,257.12 and 59,084.16

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Solution

The fourth proportional to 77,020.80, 106,257.12 and 59,084.16 is: 81,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,020.80 : 106,257.12 = 59,084.16 : x
  2. Step 2: Convert to fraction form
    77,020.80/106,257.12 = 59,084.16/x
  3. Step 3: Cross multiply
    77,020.80x = 106,257.12 × 59,084.16
  4. Step 4: Simplify right side
    77,020.80x = 6,278,112,679.22
  5. Step 5: Solve for x
    x = 6,278,112,679.22/77,020.80
  6. Step 6: Final answer
    x = 81,511.91

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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.