Home / 79,421.38-118,261.56-76,583.14

Finding the Fourth Proportional to 79,421.38, 118,261.56 and 76,583.14

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Solution

The fourth proportional to 79,421.38, 118,261.56 and 76,583.14 is: 114,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,421.38 : 118,261.56 = 76,583.14 : x
  2. Step 2: Convert to fraction form
    79,421.38/118,261.56 = 76,583.14/x
  3. Step 3: Cross multiply
    79,421.38x = 118,261.56 × 76,583.14
  4. Step 4: Simplify right side
    79,421.38x = 9,056,841,606.10
  5. Step 5: Solve for x
    x = 9,056,841,606.10/79,421.38
  6. Step 6: Final answer
    x = 114,035.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.