Home / 85,531.89-118,033.98-47,806.14

Finding the Fourth Proportional to 85,531.89, 118,033.98 and 47,806.14

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Solution

The fourth proportional to 85,531.89, 118,033.98 and 47,806.14 is: 65,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,531.89 : 118,033.98 = 47,806.14 : x
  2. Step 2: Convert to fraction form
    85,531.89/118,033.98 = 47,806.14/x
  3. Step 3: Cross multiply
    85,531.89x = 118,033.98 × 47,806.14
  4. Step 4: Simplify right side
    85,531.89x = 5,642,748,972.64
  5. Step 5: Solve for x
    x = 5,642,748,972.64/85,531.89
  6. Step 6: Final answer
    x = 65,972.46

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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.