Home / 45,420.08-68,084.31-28,565.13

Finding the Fourth Proportional to 45,420.08, 68,084.31 and 28,565.13

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Solution

The fourth proportional to 45,420.08, 68,084.31 and 28,565.13 is: 42,818.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.08 : 68,084.31 = 28,565.13 : x
  2. Step 2: Convert to fraction form
    45,420.08/68,084.31 = 28,565.13/x
  3. Step 3: Cross multiply
    45,420.08x = 68,084.31 × 28,565.13
  4. Step 4: Simplify right side
    45,420.08x = 1,944,837,166.11
  5. Step 5: Solve for x
    x = 1,944,837,166.11/45,420.08
  6. Step 6: Final answer
    x = 42,818.89

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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.