Home / 53,685.38-74,085.98-29,812.12

Finding the Fourth Proportional to 53,685.38, 74,085.98 and 29,812.12

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Solution

The fourth proportional to 53,685.38, 74,085.98 and 29,812.12 is: 41,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.38 : 74,085.98 = 29,812.12 : x
  2. Step 2: Convert to fraction form
    53,685.38/74,085.98 = 29,812.12/x
  3. Step 3: Cross multiply
    53,685.38x = 74,085.98 × 29,812.12
  4. Step 4: Simplify right side
    53,685.38x = 2,208,660,126.08
  5. Step 5: Solve for x
    x = 2,208,660,126.08/53,685.38
  6. Step 6: Final answer
    x = 41,140.81

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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.