Home / 99,042.75-136,679.22-56,601.18

Finding the Fourth Proportional to 99,042.75, 136,679.22 and 56,601.18

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Solution

The fourth proportional to 99,042.75, 136,679.22 and 56,601.18 is: 78,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,042.75 : 136,679.22 = 56,601.18 : x
  2. Step 2: Convert to fraction form
    99,042.75/136,679.22 = 56,601.18/x
  3. Step 3: Cross multiply
    99,042.75x = 136,679.22 × 56,601.18
  4. Step 4: Simplify right side
    99,042.75x = 7,736,205,133.48
  5. Step 5: Solve for x
    x = 7,736,205,133.48/99,042.75
  6. Step 6: Final answer
    x = 78,109.76

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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.