Home / 90,024.89-124,235.64-49,739.57

Finding the Fourth Proportional to 90,024.89, 124,235.64 and 49,739.57

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Solution

The fourth proportional to 90,024.89, 124,235.64 and 49,739.57 is: 68,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,024.89 : 124,235.64 = 49,739.57 : x
  2. Step 2: Convert to fraction form
    90,024.89/124,235.64 = 49,739.57/x
  3. Step 3: Cross multiply
    90,024.89x = 124,235.64 × 49,739.57
  4. Step 4: Simplify right side
    90,024.89x = 6,179,426,691.10
  5. Step 5: Solve for x
    x = 6,179,426,691.10/90,024.89
  6. Step 6: Final answer
    x = 68,641.32

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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.