Home / 53,875.15-74,347.81-31,218.51

Finding the Fourth Proportional to 53,875.15, 74,347.81 and 31,218.51

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Solution

The fourth proportional to 53,875.15, 74,347.81 and 31,218.51 is: 43,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,875.15 : 74,347.81 = 31,218.51 : x
  2. Step 2: Convert to fraction form
    53,875.15/74,347.81 = 31,218.51/x
  3. Step 3: Cross multiply
    53,875.15x = 74,347.81 × 31,218.51
  4. Step 4: Simplify right side
    53,875.15x = 2,321,027,984.87
  5. Step 5: Solve for x
    x = 2,321,027,984.87/53,875.15
  6. Step 6: Final answer
    x = 43,081.61

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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.