Home / 45,775.40-68,547.90-30,108.20

Finding the Fourth Proportional to 45,775.40, 68,547.90 and 30,108.20

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Solution

The fourth proportional to 45,775.40, 68,547.90 and 30,108.20 is: 45,086.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,775.40 : 68,547.90 = 30,108.20 : x
  2. Step 2: Convert to fraction form
    45,775.40/68,547.90 = 30,108.20/x
  3. Step 3: Cross multiply
    45,775.40x = 68,547.90 × 30,108.20
  4. Step 4: Simplify right side
    45,775.40x = 2,063,853,882.78
  5. Step 5: Solve for x
    x = 2,063,853,882.78/45,775.40
  6. Step 6: Final answer
    x = 45,086.53

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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.