Home / 77,271.29-106,640.88-43,279.16

Finding the Fourth Proportional to 77,271.29, 106,640.88 and 43,279.16

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Solution

The fourth proportional to 77,271.29, 106,640.88 and 43,279.16 is: 59,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,271.29 : 106,640.88 = 43,279.16 : x
  2. Step 2: Convert to fraction form
    77,271.29/106,640.88 = 43,279.16/x
  3. Step 3: Cross multiply
    77,271.29x = 106,640.88 × 43,279.16
  4. Step 4: Simplify right side
    77,271.29x = 4,615,327,174.86
  5. Step 5: Solve for x
    x = 4,615,327,174.86/77,271.29
  6. Step 6: Final answer
    x = 59,728.88

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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.