Home / 66,530.30-99,795.45-42,910.70

Finding the Fourth Proportional to 66,530.30, 99,795.45 and 42,910.70

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Solution

The fourth proportional to 66,530.30, 99,795.45 and 42,910.70 is: 64,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530.30 : 99,795.45 = 42,910.70 : x
  2. Step 2: Convert to fraction form
    66,530.30/99,795.45 = 42,910.70/x
  3. Step 3: Cross multiply
    66,530.30x = 99,795.45 × 42,910.70
  4. Step 4: Simplify right side
    66,530.30x = 4,282,292,616.32
  5. Step 5: Solve for x
    x = 4,282,292,616.32/66,530.30
  6. Step 6: Final answer
    x = 64,366.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.