Home / 97,957.68-135,181.47-57,123.45

Finding the Fourth Proportional to 97,957.68, 135,181.47 and 57,123.45

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Solution

The fourth proportional to 97,957.68, 135,181.47 and 57,123.45 is: 78,830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,957.68 : 135,181.47 = 57,123.45 : x
  2. Step 2: Convert to fraction form
    97,957.68/135,181.47 = 57,123.45/x
  3. Step 3: Cross multiply
    97,957.68x = 135,181.47 × 57,123.45
  4. Step 4: Simplify right side
    97,957.68x = 7,722,031,942.47
  5. Step 5: Solve for x
    x = 7,722,031,942.47/97,957.68
  6. Step 6: Final answer
    x = 78,830.29

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1.5x scale

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.