Home / 71,767.52-99,038.39-39,501.44

Finding the Fourth Proportional to 71,767.52, 99,038.39 and 39,501.44

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Solution

The fourth proportional to 71,767.52, 99,038.39 and 39,501.44 is: 54,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,767.52 : 99,038.39 = 39,501.44 : x
  2. Step 2: Convert to fraction form
    71,767.52/99,038.39 = 39,501.44/x
  3. Step 3: Cross multiply
    71,767.52x = 99,038.39 × 39,501.44
  4. Step 4: Simplify right side
    71,767.52x = 3,912,159,478.16
  5. Step 5: Solve for x
    x = 3,912,159,478.16/71,767.52
  6. Step 6: Final answer
    x = 54,511.56

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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.