Home / 83,515.95-125,317.01-39,147.21

Finding the Fourth Proportional to 83,515.95, 125,317.01 and 39,147.21

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Solution

The fourth proportional to 83,515.95, 125,317.01 and 39,147.21 is: 58,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,515.95 : 125,317.01 = 39,147.21 : x
  2. Step 2: Convert to fraction form
    83,515.95/125,317.01 = 39,147.21/x
  3. Step 3: Cross multiply
    83,515.95x = 125,317.01 × 39,147.21
  4. Step 4: Simplify right side
    83,515.95x = 4,905,811,307.04
  5. Step 5: Solve for x
    x = 4,905,811,307.04/83,515.95
  6. Step 6: Final answer
    x = 58,741.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.