Home / 45,345.15-67,948.43-30,499.11

Finding the Fourth Proportional to 45,345.15, 67,948.43 and 30,499.11

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Solution

The fourth proportional to 45,345.15, 67,948.43 and 30,499.11 is: 45,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,345.15 : 67,948.43 = 30,499.11 : x
  2. Step 2: Convert to fraction form
    45,345.15/67,948.43 = 30,499.11/x
  3. Step 3: Cross multiply
    45,345.15x = 67,948.43 × 30,499.11
  4. Step 4: Simplify right side
    45,345.15x = 2,072,366,488.40
  5. Step 5: Solve for x
    x = 2,072,366,488.40/45,345.15
  6. Step 6: Final answer
    x = 45,702.05

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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.