Home / 90,100.56-124,328.03-49,808.91

Finding the Fourth Proportional to 90,100.56, 124,328.03 and 49,808.91

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Solution

The fourth proportional to 90,100.56, 124,328.03 and 49,808.91 is: 68,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.56 : 124,328.03 = 49,808.91 : x
  2. Step 2: Convert to fraction form
    90,100.56/124,328.03 = 49,808.91/x
  3. Step 3: Cross multiply
    90,100.56x = 124,328.03 × 49,808.91
  4. Step 4: Simplify right side
    90,100.56x = 6,192,643,407.70
  5. Step 5: Solve for x
    x = 6,192,643,407.70/90,100.56
  6. Step 6: Final answer
    x = 68,730.35

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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.