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Finding the Fourth Proportional to 70,369.35, 97,107.80 and 40,154.12

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Solution

The fourth proportional to 70,369.35, 97,107.80 and 40,154.12 is: 55,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,369.35 : 97,107.80 = 40,154.12 : x
  2. Step 2: Convert to fraction form
    70,369.35/97,107.80 = 40,154.12/x
  3. Step 3: Cross multiply
    70,369.35x = 97,107.80 × 40,154.12
  4. Step 4: Simplify right side
    70,369.35x = 3,899,278,254.14
  5. Step 5: Solve for x
    x = 3,899,278,254.14/70,369.35
  6. Step 6: Final answer
    x = 55,411.60

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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.