Home / 51,422.89-77,142.56-15,875.86

Finding the Fourth Proportional to 51,422.89, 77,142.56 and 15,875.86

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Solution

The fourth proportional to 51,422.89, 77,142.56 and 15,875.86 is: 23,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,422.89 : 77,142.56 = 15,875.86 : x
  2. Step 2: Convert to fraction form
    51,422.89/77,142.56 = 15,875.86/x
  3. Step 3: Cross multiply
    51,422.89x = 77,142.56 × 15,875.86
  4. Step 4: Simplify right side
    51,422.89x = 1,224,704,482.60
  5. Step 5: Solve for x
    x = 1,224,704,482.60/51,422.89
  6. Step 6: Final answer
    x = 23,816.33

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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.