Home / 97,421.32-134,438.70-54,983.80

Finding the Fourth Proportional to 97,421.32, 134,438.70 and 54,983.80

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Solution

The fourth proportional to 97,421.32, 134,438.70 and 54,983.80 is: 75,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,421.32 : 134,438.70 = 54,983.80 : x
  2. Step 2: Convert to fraction form
    97,421.32/134,438.70 = 54,983.80/x
  3. Step 3: Cross multiply
    97,421.32x = 134,438.70 × 54,983.80
  4. Step 4: Simplify right side
    97,421.32x = 7,391,950,593.06
  5. Step 5: Solve for x
    x = 7,391,950,593.06/97,421.32
  6. Step 6: Final answer
    x = 75,876.11

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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.