Home / 71,319.07-98,423.67-39,488.50

Finding the Fourth Proportional to 71,319.07, 98,423.67 and 39,488.50

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Solution

The fourth proportional to 71,319.07, 98,423.67 and 39,488.50 is: 54,495.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,319.07 : 98,423.67 = 39,488.50 : x
  2. Step 2: Convert to fraction form
    71,319.07/98,423.67 = 39,488.50/x
  3. Step 3: Cross multiply
    71,319.07x = 98,423.67 × 39,488.50
  4. Step 4: Simplify right side
    71,319.07x = 3,886,603,092.80
  5. Step 5: Solve for x
    x = 3,886,603,092.80/71,319.07
  6. Step 6: Final answer
    x = 54,495.99

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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.