Home / 124,924.78-187,387.26-31,430.50

Finding the Fourth Proportional to 124,924.78, 187,387.26 and 31,430.50

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Solution

The fourth proportional to 124,924.78, 187,387.26 and 31,430.50 is: 47,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,924.78 : 187,387.26 = 31,430.50 : x
  2. Step 2: Convert to fraction form
    124,924.78/187,387.26 = 31,430.50/x
  3. Step 3: Cross multiply
    124,924.78x = 187,387.26 × 31,430.50
  4. Step 4: Simplify right side
    124,924.78x = 5,889,675,275.43
  5. Step 5: Solve for x
    x = 5,889,675,275.43/124,924.78
  6. Step 6: Final answer
    x = 47,145.77

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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.