Home / 70,938.15-97,895.33-39,108.21

Finding the Fourth Proportional to 70,938.15, 97,895.33 and 39,108.21

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Solution

The fourth proportional to 70,938.15, 97,895.33 and 39,108.21 is: 53,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,938.15 : 97,895.33 = 39,108.21 : x
  2. Step 2: Convert to fraction form
    70,938.15/97,895.33 = 39,108.21/x
  3. Step 3: Cross multiply
    70,938.15x = 97,895.33 × 39,108.21
  4. Step 4: Simplify right side
    70,938.15x = 3,828,511,123.66
  5. Step 5: Solve for x
    x = 3,828,511,123.66/70,938.15
  6. Step 6: Final answer
    x = 53,969.71

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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.