Home / 115,275.78-172,931.55-48,716.19

Finding the Fourth Proportional to 115,275.78, 172,931.55 and 48,716.19

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Solution

The fourth proportional to 115,275.78, 172,931.55 and 48,716.19 is: 73,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.78 : 172,931.55 = 48,716.19 : x
  2. Step 2: Convert to fraction form
    115,275.78/172,931.55 = 48,716.19/x
  3. Step 3: Cross multiply
    115,275.78x = 172,931.55 × 48,716.19
  4. Step 4: Simplify right side
    115,275.78x = 8,424,566,246.79
  5. Step 5: Solve for x
    x = 8,424,566,246.79/115,275.78
  6. Step 6: Final answer
    x = 73,081.84

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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.