Home / 85,369.07-117,904.50-66,476.13

Finding the Fourth Proportional to 85,369.07, 117,904.50 and 66,476.13

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Solution

The fourth proportional to 85,369.07, 117,904.50 and 66,476.13 is: 91,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,369.07 : 117,904.50 = 66,476.13 : x
  2. Step 2: Convert to fraction form
    85,369.07/117,904.50 = 66,476.13/x
  3. Step 3: Cross multiply
    85,369.07x = 117,904.50 × 66,476.13
  4. Step 4: Simplify right side
    85,369.07x = 7,837,834,869.59
  5. Step 5: Solve for x
    x = 7,837,834,869.59/85,369.07
  6. Step 6: Final answer
    x = 91,811.18

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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.