Home / 90,840.78-125,325.45-67,024.26

Finding the Fourth Proportional to 90,840.78, 125,325.45 and 67,024.26

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Solution

The fourth proportional to 90,840.78, 125,325.45 and 67,024.26 is: 92,467.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,840.78 : 125,325.45 = 67,024.26 : x
  2. Step 2: Convert to fraction form
    90,840.78/125,325.45 = 67,024.26/x
  3. Step 3: Cross multiply
    90,840.78x = 125,325.45 × 67,024.26
  4. Step 4: Simplify right side
    90,840.78x = 8,399,845,545.42
  5. Step 5: Solve for x
    x = 8,399,845,545.42/90,840.78
  6. Step 6: Final answer
    x = 92,467.78

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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.