Home / 51,386.56-77,033.10-19,776.46

Finding the Fourth Proportional to 51,386.56, 77,033.10 and 19,776.46

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Solution

The fourth proportional to 51,386.56, 77,033.10 and 19,776.46 is: 29,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.56 : 77,033.10 = 19,776.46 : x
  2. Step 2: Convert to fraction form
    51,386.56/77,033.10 = 19,776.46/x
  3. Step 3: Cross multiply
    51,386.56x = 77,033.10 × 19,776.46
  4. Step 4: Simplify right side
    51,386.56x = 1,523,442,020.83
  5. Step 5: Solve for x
    x = 1,523,442,020.83/51,386.56
  6. Step 6: Final answer
    x = 29,646.70

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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.