Home / 191,724.78-287,589-51,483.42

Finding the Fourth Proportional to 191,724.78, 287,589 and 51,483.42

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Solution

The fourth proportional to 191,724.78, 287,589 and 51,483.42 is: 77,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,724.78 : 287,589 = 51,483.42 : x
  2. Step 2: Convert to fraction form
    191,724.78/287,589 = 51,483.42/x
  3. Step 3: Cross multiply
    191,724.78x = 287,589 × 51,483.42
  4. Step 4: Simplify right side
    191,724.78x = 14,806,065,274.38
  5. Step 5: Solve for x
    x = 14,806,065,274.38/191,724.78
  6. Step 6: Final answer
    x = 77,225.62

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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.