Home / 90,189.47-124,461.61-49,904.93

Finding the Fourth Proportional to 90,189.47, 124,461.61 and 49,904.93

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Solution

The fourth proportional to 90,189.47, 124,461.61 and 49,904.93 is: 68,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,189.47 : 124,461.61 = 49,904.93 : x
  2. Step 2: Convert to fraction form
    90,189.47/124,461.61 = 49,904.93/x
  3. Step 3: Cross multiply
    90,189.47x = 124,461.61 × 49,904.93
  4. Step 4: Simplify right side
    90,189.47x = 6,211,247,187.67
  5. Step 5: Solve for x
    x = 6,211,247,187.67/90,189.47
  6. Step 6: Final answer
    x = 68,868.88

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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.