Home / 84,572.24-126,829.20-28,403.60

Finding the Fourth Proportional to 84,572.24, 126,829.20 and 28,403.60

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Solution

The fourth proportional to 84,572.24, 126,829.20 and 28,403.60 is: 42,595.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,572.24 : 126,829.20 = 28,403.60 : x
  2. Step 2: Convert to fraction form
    84,572.24/126,829.20 = 28,403.60/x
  3. Step 3: Cross multiply
    84,572.24x = 126,829.20 × 28,403.60
  4. Step 4: Simplify right side
    84,572.24x = 3,602,405,865.12
  5. Step 5: Solve for x
    x = 3,602,405,865.12/84,572.24
  6. Step 6: Final answer
    x = 42,595.61

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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.