Home / 86,825.60-130,194.64-42,385.76

Finding the Fourth Proportional to 86,825.60, 130,194.64 and 42,385.76

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Solution

The fourth proportional to 86,825.60, 130,194.64 and 42,385.76 is: 63,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,825.60 : 130,194.64 = 42,385.76 : x
  2. Step 2: Convert to fraction form
    86,825.60/130,194.64 = 42,385.76/x
  3. Step 3: Cross multiply
    86,825.60x = 130,194.64 × 42,385.76
  4. Step 4: Simplify right side
    86,825.60x = 5,518,398,764.33
  5. Step 5: Solve for x
    x = 5,518,398,764.33/86,825.60
  6. Step 6: Final answer
    x = 63,557.28

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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.