Home / 51,501.80-77,267.28-19,921.52

Finding the Fourth Proportional to 51,501.80, 77,267.28 and 19,921.52

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Solution

The fourth proportional to 51,501.80, 77,267.28 and 19,921.52 is: 29,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,501.80 : 77,267.28 = 19,921.52 : x
  2. Step 2: Convert to fraction form
    51,501.80/77,267.28 = 19,921.52/x
  3. Step 3: Cross multiply
    51,501.80x = 77,267.28 × 19,921.52
  4. Step 4: Simplify right side
    51,501.80x = 1,539,281,663.87
  5. Step 5: Solve for x
    x = 1,539,281,663.87/51,501.80
  6. Step 6: Final answer
    x = 29,887.92

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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.