Home / 45,513.60-68,254.20-20,565.60

Finding the Fourth Proportional to 45,513.60, 68,254.20 and 20,565.60

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Solution

The fourth proportional to 45,513.60, 68,254.20 and 20,565.60 is: 30,841.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,513.60 : 68,254.20 = 20,565.60 : x
  2. Step 2: Convert to fraction form
    45,513.60/68,254.20 = 20,565.60/x
  3. Step 3: Cross multiply
    45,513.60x = 68,254.20 × 20,565.60
  4. Step 4: Simplify right side
    45,513.60x = 1,403,688,575.52
  5. Step 5: Solve for x
    x = 1,403,688,575.52/45,513.60
  6. Step 6: Final answer
    x = 30,841.08

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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.