Home / 73,505.10-101,434.23-39,971.10

Finding the Fourth Proportional to 73,505.10, 101,434.23 and 39,971.10

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Solution

The fourth proportional to 73,505.10, 101,434.23 and 39,971.10 is: 55,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,505.10 : 101,434.23 = 39,971.10 : x
  2. Step 2: Convert to fraction form
    73,505.10/101,434.23 = 39,971.10/x
  3. Step 3: Cross multiply
    73,505.10x = 101,434.23 × 39,971.10
  4. Step 4: Simplify right side
    73,505.10x = 4,054,437,750.75
  5. Step 5: Solve for x
    x = 4,054,437,750.75/73,505.10
  6. Step 6: Final answer
    x = 55,158.59

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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.