Home / 85,331.12-117,756.12-47,091.02

Finding the Fourth Proportional to 85,331.12, 117,756.12 and 47,091.02

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Solution

The fourth proportional to 85,331.12, 117,756.12 and 47,091.02 is: 64,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.12 : 117,756.12 = 47,091.02 : x
  2. Step 2: Convert to fraction form
    85,331.12/117,756.12 = 47,091.02/x
  3. Step 3: Cross multiply
    85,331.12x = 117,756.12 × 47,091.02
  4. Step 4: Simplify right side
    85,331.12x = 5,545,255,802.04
  5. Step 5: Solve for x
    x = 5,545,255,802.04/85,331.12
  6. Step 6: Final answer
    x = 64,985.15

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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.