Home / 88,138.76-121,631.10-47,852.20

Finding the Fourth Proportional to 88,138.76, 121,631.10 and 47,852.20

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Solution

The fourth proportional to 88,138.76, 121,631.10 and 47,852.20 is: 66,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,138.76 : 121,631.10 = 47,852.20 : x
  2. Step 2: Convert to fraction form
    88,138.76/121,631.10 = 47,852.20/x
  3. Step 3: Cross multiply
    88,138.76x = 121,631.10 × 47,852.20
  4. Step 4: Simplify right side
    88,138.76x = 5,820,315,723.42
  5. Step 5: Solve for x
    x = 5,820,315,723.42/88,138.76
  6. Step 6: Final answer
    x = 66,035.82

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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.