Home / 90,541.79-124,941.78-50,255.56

Finding the Fourth Proportional to 90,541.79, 124,941.78 and 50,255.56

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Solution

The fourth proportional to 90,541.79, 124,941.78 and 50,255.56 is: 69,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,541.79 : 124,941.78 = 50,255.56 : x
  2. Step 2: Convert to fraction form
    90,541.79/124,941.78 = 50,255.56/x
  3. Step 3: Cross multiply
    90,541.79x = 124,941.78 × 50,255.56
  4. Step 4: Simplify right side
    90,541.79x = 6,279,018,557.66
  5. Step 5: Solve for x
    x = 6,279,018,557.66/90,541.79
  6. Step 6: Final answer
    x = 69,349.40

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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.