Home / 97,643.79-134,742.05-54,615.83

Finding the Fourth Proportional to 97,643.79, 134,742.05 and 54,615.83

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Solution

The fourth proportional to 97,643.79, 134,742.05 and 54,615.83 is: 75,366.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,643.79 : 134,742.05 = 54,615.83 : x
  2. Step 2: Convert to fraction form
    97,643.79/134,742.05 = 54,615.83/x
  3. Step 3: Cross multiply
    97,643.79x = 134,742.05 × 54,615.83
  4. Step 4: Simplify right side
    97,643.79x = 7,359,047,949.86
  5. Step 5: Solve for x
    x = 7,359,047,949.86/97,643.79
  6. Step 6: Final answer
    x = 75,366.27

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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.