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Finding the Fourth Proportional to 97,089.92, 133,988.40 and 54,651.20

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Solution

The fourth proportional to 97,089.92, 133,988.40 and 54,651.20 is: 75,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,089.92 : 133,988.40 = 54,651.20 : x
  2. Step 2: Convert to fraction form
    97,089.92/133,988.40 = 54,651.20/x
  3. Step 3: Cross multiply
    97,089.92x = 133,988.40 × 54,651.20
  4. Step 4: Simplify right side
    97,089.92x = 7,322,626,846.08
  5. Step 5: Solve for x
    x = 7,322,626,846.08/97,089.92
  6. Step 6: Final answer
    x = 75,421.08

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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.