Home / 70,351.32-97,085.10-38,520.72

Finding the Fourth Proportional to 70,351.32, 97,085.10 and 38,520.72

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Solution

The fourth proportional to 70,351.32, 97,085.10 and 38,520.72 is: 53,158.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.32 : 97,085.10 = 38,520.72 : x
  2. Step 2: Convert to fraction form
    70,351.32/97,085.10 = 38,520.72/x
  3. Step 3: Cross multiply
    70,351.32x = 97,085.10 × 38,520.72
  4. Step 4: Simplify right side
    70,351.32x = 3,739,787,953.27
  5. Step 5: Solve for x
    x = 3,739,787,953.27/70,351.32
  6. Step 6: Final answer
    x = 53,158.75

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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.