Home / 53,013.09-73,137.79-39,248.21

Finding the Fourth Proportional to 53,013.09, 73,137.79 and 39,248.21

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Solution

The fourth proportional to 53,013.09, 73,137.79 and 39,248.21 is: 54,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,013.09 : 73,137.79 = 39,248.21 : x
  2. Step 2: Convert to fraction form
    53,013.09/73,137.79 = 39,248.21/x
  3. Step 3: Cross multiply
    53,013.09x = 73,137.79 × 39,248.21
  4. Step 4: Simplify right side
    53,013.09x = 2,870,527,572.76
  5. Step 5: Solve for x
    x = 2,870,527,572.76/53,013.09
  6. Step 6: Final answer
    x = 54,147.52

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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.