Home / 61,688.16-85,129.50-33,393.72

Finding the Fourth Proportional to 61,688.16, 85,129.50 and 33,393.72

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Solution

The fourth proportional to 61,688.16, 85,129.50 and 33,393.72 is: 46,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688.16 : 85,129.50 = 33,393.72 : x
  2. Step 2: Convert to fraction form
    61,688.16/85,129.50 = 33,393.72/x
  3. Step 3: Cross multiply
    61,688.16x = 85,129.50 × 33,393.72
  4. Step 4: Simplify right side
    61,688.16x = 2,842,790,686.74
  5. Step 5: Solve for x
    x = 2,842,790,686.74/61,688.16
  6. Step 6: Final answer
    x = 46,083.25

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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.