Home / 56,740.76-78,300.86-31,589.72

Finding the Fourth Proportional to 56,740.76, 78,300.86 and 31,589.72

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Solution

The fourth proportional to 56,740.76, 78,300.86 and 31,589.72 is: 43,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,740.76 : 78,300.86 = 31,589.72 : x
  2. Step 2: Convert to fraction form
    56,740.76/78,300.86 = 31,589.72/x
  3. Step 3: Cross multiply
    56,740.76x = 78,300.86 × 31,589.72
  4. Step 4: Simplify right side
    56,740.76x = 2,473,502,243.16
  5. Step 5: Solve for x
    x = 2,473,502,243.16/56,740.76
  6. Step 6: Final answer
    x = 43,593.04

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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.