Home / 52,040.60-78,036.56-18,756.28

Finding the Fourth Proportional to 52,040.60, 78,036.56 and 18,756.28

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Solution

The fourth proportional to 52,040.60, 78,036.56 and 18,756.28 is: 28,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,040.60 : 78,036.56 = 18,756.28 : x
  2. Step 2: Convert to fraction form
    52,040.60/78,036.56 = 18,756.28/x
  3. Step 3: Cross multiply
    52,040.60x = 78,036.56 × 18,756.28
  4. Step 4: Simplify right side
    52,040.60x = 1,463,675,569.60
  5. Step 5: Solve for x
    x = 1,463,675,569.60/52,040.60
  6. Step 6: Final answer
    x = 28,125.65

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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.