Home / 30,278.80-45,454.65-30,060.10

Finding the Fourth Proportional to 30,278.80, 45,454.65 and 30,060.10

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Solution

The fourth proportional to 30,278.80, 45,454.65 and 30,060.10 is: 45,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.80 : 45,454.65 = 30,060.10 : x
  2. Step 2: Convert to fraction form
    30,278.80/45,454.65 = 30,060.10/x
  3. Step 3: Cross multiply
    30,278.80x = 45,454.65 × 30,060.10
  4. Step 4: Simplify right side
    30,278.80x = 1,366,371,324.47
  5. Step 5: Solve for x
    x = 1,366,371,324.47/30,278.80
  6. Step 6: Final answer
    x = 45,126.34

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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.