Home / 90,123.89-124,360.02-49,832.15

Finding the Fourth Proportional to 90,123.89, 124,360.02 and 49,832.15

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Solution

The fourth proportional to 90,123.89, 124,360.02 and 49,832.15 is: 68,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,123.89 : 124,360.02 = 49,832.15 : x
  2. Step 2: Convert to fraction form
    90,123.89/124,360.02 = 49,832.15/x
  3. Step 3: Cross multiply
    90,123.89x = 124,360.02 × 49,832.15
  4. Step 4: Simplify right side
    90,123.89x = 6,197,126,548.84
  5. Step 5: Solve for x
    x = 6,197,126,548.84/90,123.89
  6. Step 6: Final answer
    x = 68,762.31

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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.