Home / 70,392.27-97,117.05-40,155.78

Finding the Fourth Proportional to 70,392.27, 97,117.05 and 40,155.78

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Solution

The fourth proportional to 70,392.27, 97,117.05 and 40,155.78 is: 55,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,392.27 : 97,117.05 = 40,155.78 : x
  2. Step 2: Convert to fraction form
    70,392.27/97,117.05 = 40,155.78/x
  3. Step 3: Cross multiply
    70,392.27x = 97,117.05 × 40,155.78
  4. Step 4: Simplify right side
    70,392.27x = 3,899,810,894.05
  5. Step 5: Solve for x
    x = 3,899,810,894.05/70,392.27
  6. Step 6: Final answer
    x = 55,401.12

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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.