Home / 45,345.65-68,018.38-12,065.70

Finding the Fourth Proportional to 45,345.65, 68,018.38 and 12,065.70

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Solution

The fourth proportional to 45,345.65, 68,018.38 and 12,065.70 is: 18,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,345.65 : 68,018.38 = 12,065.70 : x
  2. Step 2: Convert to fraction form
    45,345.65/68,018.38 = 12,065.70/x
  3. Step 3: Cross multiply
    45,345.65x = 68,018.38 × 12,065.70
  4. Step 4: Simplify right side
    45,345.65x = 820,689,592.47
  5. Step 5: Solve for x
    x = 820,689,592.47/45,345.65
  6. Step 6: Final answer
    x = 18,098.53

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1.5x scale

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.