Home / 90,676.76-125,095.10-56,626.12

Finding the Fourth Proportional to 90,676.76, 125,095.10 and 56,626.12

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Solution

The fourth proportional to 90,676.76, 125,095.10 and 56,626.12 is: 78,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,676.76 : 125,095.10 = 56,626.12 : x
  2. Step 2: Convert to fraction form
    90,676.76/125,095.10 = 56,626.12/x
  3. Step 3: Cross multiply
    90,676.76x = 125,095.10 × 56,626.12
  4. Step 4: Simplify right side
    90,676.76x = 7,083,650,144.01
  5. Step 5: Solve for x
    x = 7,083,650,144.01/90,676.76
  6. Step 6: Final answer
    x = 78,119.80

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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.