Home / 51,476.48-71,036.16-29,120

Finding the Fourth Proportional to 51,476.48, 71,036.16 and 29,120

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Solution

The fourth proportional to 51,476.48, 71,036.16 and 29,120 is: 40,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,476.48 : 71,036.16 = 29,120 : x
  2. Step 2: Convert to fraction form
    51,476.48/71,036.16 = 29,120/x
  3. Step 3: Cross multiply
    51,476.48x = 71,036.16 × 29,120
  4. Step 4: Simplify right side
    51,476.48x = 2,068,572,979.20
  5. Step 5: Solve for x
    x = 2,068,572,979.20/51,476.48
  6. Step 6: Final answer
    x = 40,184.82

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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.