Home / 45,590.91-62,840.13-30,478.05

Finding the Fourth Proportional to 45,590.91, 62,840.13 and 30,478.05

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Solution

The fourth proportional to 45,590.91, 62,840.13 and 30,478.05 is: 42,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,590.91 : 62,840.13 = 30,478.05 : x
  2. Step 2: Convert to fraction form
    45,590.91/62,840.13 = 30,478.05/x
  3. Step 3: Cross multiply
    45,590.91x = 62,840.13 × 30,478.05
  4. Step 4: Simplify right side
    45,590.91x = 1,915,244,309.95
  5. Step 5: Solve for x
    x = 1,915,244,309.95/45,590.91
  6. Step 6: Final answer
    x = 42,009.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.