Home / 75,750.66-113,340.30-45,242.69

Finding the Fourth Proportional to 75,750.66, 113,340.30 and 45,242.69

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Solution

The fourth proportional to 75,750.66, 113,340.30 and 45,242.69 is: 67,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,750.66 : 113,340.30 = 45,242.69 : x
  2. Step 2: Convert to fraction form
    75,750.66/113,340.30 = 45,242.69/x
  3. Step 3: Cross multiply
    75,750.66x = 113,340.30 × 45,242.69
  4. Step 4: Simplify right side
    75,750.66x = 5,127,819,490.71
  5. Step 5: Solve for x
    x = 5,127,819,490.71/75,750.66
  6. Step 6: Final answer
    x = 67,693.40

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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.