Home / 70,438.32-97,207.29-38,607.21

Finding the Fourth Proportional to 70,438.32, 97,207.29 and 38,607.21

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Solution

The fourth proportional to 70,438.32, 97,207.29 and 38,607.21 is: 53,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,438.32 : 97,207.29 = 38,607.21 : x
  2. Step 2: Convert to fraction form
    70,438.32/97,207.29 = 38,607.21/x
  3. Step 3: Cross multiply
    70,438.32x = 97,207.29 × 38,607.21
  4. Step 4: Simplify right side
    70,438.32x = 3,752,902,258.56
  5. Step 5: Solve for x
    x = 3,752,902,258.56/70,438.32
  6. Step 6: Final answer
    x = 53,279.27

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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.