Home / 53,685.76-74,085.36-29,811.92

Finding the Fourth Proportional to 53,685.76, 74,085.36 and 29,811.92

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Solution

The fourth proportional to 53,685.76, 74,085.36 and 29,811.92 is: 41,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.76 : 74,085.36 = 29,811.92 : x
  2. Step 2: Convert to fraction form
    53,685.76/74,085.36 = 29,811.92/x
  3. Step 3: Cross multiply
    53,685.76x = 74,085.36 × 29,811.92
  4. Step 4: Simplify right side
    53,685.76x = 2,208,626,825.49
  5. Step 5: Solve for x
    x = 2,208,626,825.49/53,685.76
  6. Step 6: Final answer
    x = 41,139.90

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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.