Home / 67,378.90-101,068.35-66,066.70

Finding the Fourth Proportional to 67,378.90, 101,068.35 and 66,066.70

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Solution

The fourth proportional to 67,378.90, 101,068.35 and 66,066.70 is: 99,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,378.90 : 101,068.35 = 66,066.70 : x
  2. Step 2: Convert to fraction form
    67,378.90/101,068.35 = 66,066.70/x
  3. Step 3: Cross multiply
    67,378.90x = 101,068.35 × 66,066.70
  4. Step 4: Simplify right side
    67,378.90x = 6,677,252,358.95
  5. Step 5: Solve for x
    x = 6,677,252,358.95/67,378.90
  6. Step 6: Final answer
    x = 99,100.05

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1.5x scale

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.