Home / 77,140.38-115,701.93-52,339.74

Finding the Fourth Proportional to 77,140.38, 115,701.93 and 52,339.74

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Solution

The fourth proportional to 77,140.38, 115,701.93 and 52,339.74 is: 78,503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.38 : 115,701.93 = 52,339.74 : x
  2. Step 2: Convert to fraction form
    77,140.38/115,701.93 = 52,339.74/x
  3. Step 3: Cross multiply
    77,140.38x = 115,701.93 × 52,339.74
  4. Step 4: Simplify right side
    77,140.38x = 6,055,808,933.70
  5. Step 5: Solve for x
    x = 6,055,808,933.70/77,140.38
  6. Step 6: Final answer
    x = 78,503.75

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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.