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Finding the Fourth Proportional to 97,809, 134,983.17 and 55,367.70

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Solution

The fourth proportional to 97,809, 134,983.17 and 55,367.70 is: 76,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,809 : 134,983.17 = 55,367.70 : x
  2. Step 2: Convert to fraction form
    97,809/134,983.17 = 55,367.70/x
  3. Step 3: Cross multiply
    97,809x = 134,983.17 × 55,367.70
  4. Step 4: Simplify right side
    97,809x = 7,473,707,661.61
  5. Step 5: Solve for x
    x = 7,473,707,661.61/97,809
  6. Step 6: Final answer
    x = 76,411.25

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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.