Home / 51,759.78-77,641.19-14,320.16

Finding the Fourth Proportional to 51,759.78, 77,641.19 and 14,320.16

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Solution

The fourth proportional to 51,759.78, 77,641.19 and 14,320.16 is: 21,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,759.78 : 77,641.19 = 14,320.16 : x
  2. Step 2: Convert to fraction form
    51,759.78/77,641.19 = 14,320.16/x
  3. Step 3: Cross multiply
    51,759.78x = 77,641.19 × 14,320.16
  4. Step 4: Simplify right side
    51,759.78x = 1,111,833,803.58
  5. Step 5: Solve for x
    x = 1,111,833,803.58/51,759.78
  6. Step 6: Final answer
    x = 21,480.65

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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.