Home / 66,733.81-92,083.55-39,870.61

Finding the Fourth Proportional to 66,733.81, 92,083.55 and 39,870.61

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Solution

The fourth proportional to 66,733.81, 92,083.55 and 39,870.61 is: 55,016.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,733.81 : 92,083.55 = 39,870.61 : x
  2. Step 2: Convert to fraction form
    66,733.81/92,083.55 = 39,870.61/x
  3. Step 3: Cross multiply
    66,733.81x = 92,083.55 × 39,870.61
  4. Step 4: Simplify right side
    66,733.81x = 3,671,427,309.47
  5. Step 5: Solve for x
    x = 3,671,427,309.47/66,733.81
  6. Step 6: Final answer
    x = 55,016.00

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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.