Home / 74,899.24-112,293.42-45,309.88

Finding the Fourth Proportional to 74,899.24, 112,293.42 and 45,309.88

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Solution

The fourth proportional to 74,899.24, 112,293.42 and 45,309.88 is: 67,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,899.24 : 112,293.42 = 45,309.88 : x
  2. Step 2: Convert to fraction form
    74,899.24/112,293.42 = 45,309.88/x
  3. Step 3: Cross multiply
    74,899.24x = 112,293.42 × 45,309.88
  4. Step 4: Simplify right side
    74,899.24x = 5,088,001,384.99
  5. Step 5: Solve for x
    x = 5,088,001,384.99/74,899.24
  6. Step 6: Final answer
    x = 67,931.28

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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.