Home / 84,147.60-126,184.47-31,520.16

Finding the Fourth Proportional to 84,147.60, 126,184.47 and 31,520.16

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Solution

The fourth proportional to 84,147.60, 126,184.47 and 31,520.16 is: 47,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,147.60 : 126,184.47 = 31,520.16 : x
  2. Step 2: Convert to fraction form
    84,147.60/126,184.47 = 31,520.16/x
  3. Step 3: Cross multiply
    84,147.60x = 126,184.47 × 31,520.16
  4. Step 4: Simplify right side
    84,147.60x = 3,977,354,683.92
  5. Step 5: Solve for x
    x = 3,977,354,683.92/84,147.60
  6. Step 6: Final answer
    x = 47,266.41

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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.