Home / 88,863.20-133,078.80-47,218.40

Finding the Fourth Proportional to 88,863.20, 133,078.80 and 47,218.40

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Solution

The fourth proportional to 88,863.20, 133,078.80 and 47,218.40 is: 70,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,863.20 : 133,078.80 = 47,218.40 : x
  2. Step 2: Convert to fraction form
    88,863.20/133,078.80 = 47,218.40/x
  3. Step 3: Cross multiply
    88,863.20x = 133,078.80 × 47,218.40
  4. Step 4: Simplify right side
    88,863.20x = 6,283,768,009.92
  5. Step 5: Solve for x
    x = 6,283,768,009.92/88,863.20
  6. Step 6: Final answer
    x = 70,712.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.