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Finding the Fourth Proportional to 64,279.40, 88,705.14 and 35,983.40

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Solution

The fourth proportional to 64,279.40, 88,705.14 and 35,983.40 is: 49,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,279.40 : 88,705.14 = 35,983.40 : x
  2. Step 2: Convert to fraction form
    64,279.40/88,705.14 = 35,983.40/x
  3. Step 3: Cross multiply
    64,279.40x = 88,705.14 × 35,983.40
  4. Step 4: Simplify right side
    64,279.40x = 3,191,912,534.68
  5. Step 5: Solve for x
    x = 3,191,912,534.68/64,279.40
  6. Step 6: Final answer
    x = 49,656.85

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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.