Home / 56,345.13-84,560.54-20,840.04

Finding the Fourth Proportional to 56,345.13, 84,560.54 and 20,840.04

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Solution

The fourth proportional to 56,345.13, 84,560.54 and 20,840.04 is: 31,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,345.13 : 84,560.54 = 20,840.04 : x
  2. Step 2: Convert to fraction form
    56,345.13/84,560.54 = 20,840.04/x
  3. Step 3: Cross multiply
    56,345.13x = 84,560.54 × 20,840.04
  4. Step 4: Simplify right side
    56,345.13x = 1,762,245,088.12
  5. Step 5: Solve for x
    x = 1,762,245,088.12/56,345.13
  6. Step 6: Final answer
    x = 31,275.91

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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.