Home / 51,719.30-71,364-30,502.77

Finding the Fourth Proportional to 51,719.30, 71,364 and 30,502.77

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Solution

The fourth proportional to 51,719.30, 71,364 and 30,502.77 is: 42,088.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.30 : 71,364 = 30,502.77 : x
  2. Step 2: Convert to fraction form
    51,719.30/71,364 = 30,502.77/x
  3. Step 3: Cross multiply
    51,719.30x = 71,364 × 30,502.77
  4. Step 4: Simplify right side
    51,719.30x = 2,176,799,678.28
  5. Step 5: Solve for x
    x = 2,176,799,678.28/51,719.30
  6. Step 6: Final answer
    x = 42,088.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.