Home / 89,031.39-122,862.97-50,790.86

Finding the Fourth Proportional to 89,031.39, 122,862.97 and 50,790.86

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Solution

The fourth proportional to 89,031.39, 122,862.97 and 50,790.86 is: 70,091.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,031.39 : 122,862.97 = 50,790.86 : x
  2. Step 2: Convert to fraction form
    89,031.39/122,862.97 = 50,790.86/x
  3. Step 3: Cross multiply
    89,031.39x = 122,862.97 × 50,790.86
  4. Step 4: Simplify right side
    89,031.39x = 6,240,316,279.10
  5. Step 5: Solve for x
    x = 6,240,316,279.10/89,031.39
  6. Step 6: Final answer
    x = 70,091.19

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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.