Home / 51,719.53-77,560.08-18,430.75

Finding the Fourth Proportional to 51,719.53, 77,560.08 and 18,430.75

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Solution

The fourth proportional to 51,719.53, 77,560.08 and 18,430.75 is: 27,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.53 : 77,560.08 = 18,430.75 : x
  2. Step 2: Convert to fraction form
    51,719.53/77,560.08 = 18,430.75/x
  3. Step 3: Cross multiply
    51,719.53x = 77,560.08 × 18,430.75
  4. Step 4: Simplify right side
    51,719.53x = 1,429,490,444.46
  5. Step 5: Solve for x
    x = 1,429,490,444.46/51,719.53
  6. Step 6: Final answer
    x = 27,639.28

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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.