Home / 97,970.04-135,228.96-57,680.64

Finding the Fourth Proportional to 97,970.04, 135,228.96 and 57,680.64

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Solution

The fourth proportional to 97,970.04, 135,228.96 and 57,680.64 is: 79,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,970.04 : 135,228.96 = 57,680.64 : x
  2. Step 2: Convert to fraction form
    97,970.04/135,228.96 = 57,680.64/x
  3. Step 3: Cross multiply
    97,970.04x = 135,228.96 × 57,680.64
  4. Step 4: Simplify right side
    97,970.04x = 7,800,092,959.33
  5. Step 5: Solve for x
    x = 7,800,092,959.33/97,970.04
  6. Step 6: Final answer
    x = 79,617.13

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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.