Home / 90,156.93-124,405.56-49,865.19

Finding the Fourth Proportional to 90,156.93, 124,405.56 and 49,865.19

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Solution

The fourth proportional to 90,156.93, 124,405.56 and 49,865.19 is: 68,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,156.93 : 124,405.56 = 49,865.19 : x
  2. Step 2: Convert to fraction form
    90,156.93/124,405.56 = 49,865.19/x
  3. Step 3: Cross multiply
    90,156.93x = 124,405.56 × 49,865.19
  4. Step 4: Simplify right side
    90,156.93x = 6,203,506,886.46
  5. Step 5: Solve for x
    x = 6,203,506,886.46/90,156.93
  6. Step 6: Final answer
    x = 68,807.88

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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.