Home / 85,690.14-118,252.29-47,964.39

Finding the Fourth Proportional to 85,690.14, 118,252.29 and 47,964.39

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Solution

The fourth proportional to 85,690.14, 118,252.29 and 47,964.39 is: 66,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,690.14 : 118,252.29 = 47,964.39 : x
  2. Step 2: Convert to fraction form
    85,690.14/118,252.29 = 47,964.39/x
  3. Step 3: Cross multiply
    85,690.14x = 118,252.29 × 47,964.39
  4. Step 4: Simplify right side
    85,690.14x = 5,671,898,955.95
  5. Step 5: Solve for x
    x = 5,671,898,955.95/85,690.14
  6. Step 6: Final answer
    x = 66,190.80

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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.