Home / 88,217.19-121,740.22-47,931.28

Finding the Fourth Proportional to 88,217.19, 121,740.22 and 47,931.28

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Solution

The fourth proportional to 88,217.19, 121,740.22 and 47,931.28 is: 66,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,217.19 : 121,740.22 = 47,931.28 : x
  2. Step 2: Convert to fraction form
    88,217.19/121,740.22 = 47,931.28/x
  3. Step 3: Cross multiply
    88,217.19x = 121,740.22 × 47,931.28
  4. Step 4: Simplify right side
    88,217.19x = 5,835,164,327.65
  5. Step 5: Solve for x
    x = 5,835,164,327.65/88,217.19
  6. Step 6: Final answer
    x = 66,145.43

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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.