Home / 70,902.72-97,846.40-39,072.76

Finding the Fourth Proportional to 70,902.72, 97,846.40 and 39,072.76

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Solution

The fourth proportional to 70,902.72, 97,846.40 and 39,072.76 is: 53,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.72 : 97,846.40 = 39,072.76 : x
  2. Step 2: Convert to fraction form
    70,902.72/97,846.40 = 39,072.76/x
  3. Step 3: Cross multiply
    70,902.72x = 97,846.40 × 39,072.76
  4. Step 4: Simplify right side
    70,902.72x = 3,823,128,904.06
  5. Step 5: Solve for x
    x = 3,823,128,904.06/70,902.72
  6. Step 6: Final answer
    x = 53,920.77

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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.