Home / 90,042.98-124,266.80-49,764.61

Finding the Fourth Proportional to 90,042.98, 124,266.80 and 49,764.61

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Solution

The fourth proportional to 90,042.98, 124,266.80 and 49,764.61 is: 68,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,042.98 : 124,266.80 = 49,764.61 : x
  2. Step 2: Convert to fraction form
    90,042.98/124,266.80 = 49,764.61/x
  3. Step 3: Cross multiply
    90,042.98x = 124,266.80 × 49,764.61
  4. Step 4: Simplify right side
    90,042.98x = 6,184,087,967.79
  5. Step 5: Solve for x
    x = 6,184,087,967.79/90,042.98
  6. Step 6: Final answer
    x = 68,679.29

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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.