Home / 97,686.64-134,743.80-61,839.28

Finding the Fourth Proportional to 97,686.64, 134,743.80 and 61,839.28

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Solution

The fourth proportional to 97,686.64, 134,743.80 and 61,839.28 is: 85,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,686.64 : 134,743.80 = 61,839.28 : x
  2. Step 2: Convert to fraction form
    97,686.64/134,743.80 = 61,839.28/x
  3. Step 3: Cross multiply
    97,686.64x = 134,743.80 × 61,839.28
  4. Step 4: Simplify right side
    97,686.64x = 8,332,459,576.46
  5. Step 5: Solve for x
    x = 8,332,459,576.46/97,686.64
  6. Step 6: Final answer
    x = 85,297.84

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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.