Home / 85,376.81-117,833.85-49,587.59

Finding the Fourth Proportional to 85,376.81, 117,833.85 and 49,587.59

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Solution

The fourth proportional to 85,376.81, 117,833.85 and 49,587.59 is: 68,438.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,376.81 : 117,833.85 = 49,587.59 : x
  2. Step 2: Convert to fraction form
    85,376.81/117,833.85 = 49,587.59/x
  3. Step 3: Cross multiply
    85,376.81x = 117,833.85 × 49,587.59
  4. Step 4: Simplify right side
    85,376.81x = 5,843,095,804.81
  5. Step 5: Solve for x
    x = 5,843,095,804.81/85,376.81
  6. Step 6: Final answer
    x = 68,438.91

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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.