Home / 61,685.16-85,125.36-33,390.72

Finding the Fourth Proportional to 61,685.16, 85,125.36 and 33,390.72

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Solution

The fourth proportional to 61,685.16, 85,125.36 and 33,390.72 is: 46,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,685.16 : 85,125.36 = 33,390.72 : x
  2. Step 2: Convert to fraction form
    61,685.16/85,125.36 = 33,390.72/x
  3. Step 3: Cross multiply
    61,685.16x = 85,125.36 × 33,390.72
  4. Step 4: Simplify right side
    61,685.16x = 2,842,397,060.66
  5. Step 5: Solve for x
    x = 2,842,397,060.66/61,685.16
  6. Step 6: Final answer
    x = 46,079.11

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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.