Home / 97,421.78-134,427.65-59,161.43

Finding the Fourth Proportional to 97,421.78, 134,427.65 and 59,161.43

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Solution

The fourth proportional to 97,421.78, 134,427.65 and 59,161.43 is: 81,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,421.78 : 134,427.65 = 59,161.43 : x
  2. Step 2: Convert to fraction form
    97,421.78/134,427.65 = 59,161.43/x
  3. Step 3: Cross multiply
    97,421.78x = 134,427.65 × 59,161.43
  4. Step 4: Simplify right side
    97,421.78x = 7,952,932,045.80
  5. Step 5: Solve for x
    x = 7,952,932,045.80/97,421.78
  6. Step 6: Final answer
    x = 81,634.02

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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.