Home / 53,712.09-74,120.63-29,840.27

Finding the Fourth Proportional to 53,712.09, 74,120.63 and 29,840.27

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Solution

The fourth proportional to 53,712.09, 74,120.63 and 29,840.27 is: 41,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,712.09 : 74,120.63 = 29,840.27 : x
  2. Step 2: Convert to fraction form
    53,712.09/74,120.63 = 29,840.27/x
  3. Step 3: Cross multiply
    53,712.09x = 74,120.63 × 29,840.27
  4. Step 4: Simplify right side
    53,712.09x = 2,211,779,091.97
  5. Step 5: Solve for x
    x = 2,211,779,091.97/53,712.09
  6. Step 6: Final answer
    x = 41,178.42

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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.