Home / 85,499.60-117,985.76-47,257.16

Finding the Fourth Proportional to 85,499.60, 117,985.76 and 47,257.16

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Solution

The fourth proportional to 85,499.60, 117,985.76 and 47,257.16 is: 65,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,499.60 : 117,985.76 = 47,257.16 : x
  2. Step 2: Convert to fraction form
    85,499.60/117,985.76 = 47,257.16/x
  3. Step 3: Cross multiply
    85,499.60x = 117,985.76 × 47,257.16
  4. Step 4: Simplify right side
    85,499.60x = 5,575,671,938.04
  5. Step 5: Solve for x
    x = 5,575,671,938.04/85,499.60
  6. Step 6: Final answer
    x = 65,212.84

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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.