Home / 97,031.20-133,895.28-54,587.20

Finding the Fourth Proportional to 97,031.20, 133,895.28 and 54,587.20

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Solution

The fourth proportional to 97,031.20, 133,895.28 and 54,587.20 is: 75,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,031.20 : 133,895.28 = 54,587.20 : x
  2. Step 2: Convert to fraction form
    97,031.20/133,895.28 = 54,587.20/x
  3. Step 3: Cross multiply
    97,031.20x = 133,895.28 × 54,587.20
  4. Step 4: Simplify right side
    97,031.20x = 7,308,968,428.42
  5. Step 5: Solve for x
    x = 7,308,968,428.42/97,031.20
  6. Step 6: Final answer
    x = 75,325.96

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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.