Home / 97,708.34-134,835.12-54,688.40

Finding the Fourth Proportional to 97,708.34, 134,835.12 and 54,688.40

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Solution

The fourth proportional to 97,708.34, 134,835.12 and 54,688.40 is: 75,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,708.34 : 134,835.12 = 54,688.40 : x
  2. Step 2: Convert to fraction form
    97,708.34/134,835.12 = 54,688.40/x
  3. Step 3: Cross multiply
    97,708.34x = 134,835.12 × 54,688.40
  4. Step 4: Simplify right side
    97,708.34x = 7,373,916,976.61
  5. Step 5: Solve for x
    x = 7,373,916,976.61/97,708.34
  6. Step 6: Final answer
    x = 75,468.65

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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.