Home / 45,443.12-68,130.66-30,610.40

Finding the Fourth Proportional to 45,443.12, 68,130.66 and 30,610.40

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Solution

The fourth proportional to 45,443.12, 68,130.66 and 30,610.40 is: 45,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,443.12 : 68,130.66 = 30,610.40 : x
  2. Step 2: Convert to fraction form
    45,443.12/68,130.66 = 30,610.40/x
  3. Step 3: Cross multiply
    45,443.12x = 68,130.66 × 30,610.40
  4. Step 4: Simplify right side
    45,443.12x = 2,085,506,754.86
  5. Step 5: Solve for x
    x = 2,085,506,754.86/45,443.12
  6. Step 6: Final answer
    x = 45,892.68

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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.