Home / 45,655.20-68,547.60-28,159.20

Finding the Fourth Proportional to 45,655.20, 68,547.60 and 28,159.20

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Solution

The fourth proportional to 45,655.20, 68,547.60 and 28,159.20 is: 42,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,655.20 : 68,547.60 = 28,159.20 : x
  2. Step 2: Convert to fraction form
    45,655.20/68,547.60 = 28,159.20/x
  3. Step 3: Cross multiply
    45,655.20x = 68,547.60 × 28,159.20
  4. Step 4: Simplify right side
    45,655.20x = 1,930,245,577.92
  5. Step 5: Solve for x
    x = 1,930,245,577.92/45,655.20
  6. Step 6: Final answer
    x = 42,278.77

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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.