Home / 70,521.18-97,318.65-38,255.70

Finding the Fourth Proportional to 70,521.18, 97,318.65 and 38,255.70

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Solution

The fourth proportional to 70,521.18, 97,318.65 and 38,255.70 is: 52,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,521.18 : 97,318.65 = 38,255.70 : x
  2. Step 2: Convert to fraction form
    70,521.18/97,318.65 = 38,255.70/x
  3. Step 3: Cross multiply
    70,521.18x = 97,318.65 × 38,255.70
  4. Step 4: Simplify right side
    70,521.18x = 3,722,993,078.81
  5. Step 5: Solve for x
    x = 3,722,993,078.81/70,521.18
  6. Step 6: Final answer
    x = 52,792.55

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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.