Home / 90,100.11-124,334.25-49,263.48

Finding the Fourth Proportional to 90,100.11, 124,334.25 and 49,263.48

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Solution

The fourth proportional to 90,100.11, 124,334.25 and 49,263.48 is: 67,981.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,100.11 : 124,334.25 = 49,263.48 : x
  2. Step 2: Convert to fraction form
    90,100.11/124,334.25 = 49,263.48/x
  3. Step 3: Cross multiply
    90,100.11x = 124,334.25 × 49,263.48
  4. Step 4: Simplify right side
    90,100.11x = 6,125,137,838.19
  5. Step 5: Solve for x
    x = 6,125,137,838.19/90,100.11
  6. Step 6: Final answer
    x = 67,981.47

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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.