Home / 56,626.95-84,951.15-18,678.40

Finding the Fourth Proportional to 56,626.95, 84,951.15 and 18,678.40

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Solution

The fourth proportional to 56,626.95, 84,951.15 and 18,678.40 is: 28,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,626.95 : 84,951.15 = 18,678.40 : x
  2. Step 2: Convert to fraction form
    56,626.95/84,951.15 = 18,678.40/x
  3. Step 3: Cross multiply
    56,626.95x = 84,951.15 × 18,678.40
  4. Step 4: Simplify right side
    56,626.95x = 1,586,751,560.16
  5. Step 5: Solve for x
    x = 1,586,751,560.16/56,626.95
  6. Step 6: Final answer
    x = 28,021.14

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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.