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Finding the Fourth Proportional to 70,467, 97,247.40 and 38,637.12

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Solution

The fourth proportional to 70,467, 97,247.40 and 38,637.12 is: 53,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,467 : 97,247.40 = 38,637.12 : x
  2. Step 2: Convert to fraction form
    70,467/97,247.40 = 38,637.12/x
  3. Step 3: Cross multiply
    70,467x = 97,247.40 × 38,637.12
  4. Step 4: Simplify right side
    70,467x = 3,757,359,463.49
  5. Step 5: Solve for x
    x = 3,757,359,463.49/70,467
  6. Step 6: Final answer
    x = 53,320.84

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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.