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Finding the Fourth Proportional to 97,574.88, 134,656 and 55,132.56

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Solution

The fourth proportional to 97,574.88, 134,656 and 55,132.56 is: 76,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,574.88 : 134,656 = 55,132.56 : x
  2. Step 2: Convert to fraction form
    97,574.88/134,656 = 55,132.56/x
  3. Step 3: Cross multiply
    97,574.88x = 134,656 × 55,132.56
  4. Step 4: Simplify right side
    97,574.88x = 7,423,929,999.36
  5. Step 5: Solve for x
    x = 7,423,929,999.36/97,574.88
  6. Step 6: Final answer
    x = 76,084.44

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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.