Home / 53,981.88-74,504.10-39,875.64

Finding the Fourth Proportional to 53,981.88, 74,504.10 and 39,875.64

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Solution

The fourth proportional to 53,981.88, 74,504.10 and 39,875.64 is: 55,035.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.88 : 74,504.10 = 39,875.64 : x
  2. Step 2: Convert to fraction form
    53,981.88/74,504.10 = 39,875.64/x
  3. Step 3: Cross multiply
    53,981.88x = 74,504.10 × 39,875.64
  4. Step 4: Simplify right side
    53,981.88x = 2,970,898,670.12
  5. Step 5: Solve for x
    x = 2,970,898,670.12/53,981.88
  6. Step 6: Final answer
    x = 55,035.11

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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.