Home / 85,331.62-117,756.81-47,091.52

Finding the Fourth Proportional to 85,331.62, 117,756.81 and 47,091.52

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Solution

The fourth proportional to 85,331.62, 117,756.81 and 47,091.52 is: 64,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.62 : 117,756.81 = 47,091.52 : x
  2. Step 2: Convert to fraction form
    85,331.62/117,756.81 = 47,091.52/x
  3. Step 3: Cross multiply
    85,331.62x = 117,756.81 × 47,091.52
  4. Step 4: Simplify right side
    85,331.62x = 5,545,346,878.86
  5. Step 5: Solve for x
    x = 5,545,346,878.86/85,331.62
  6. Step 6: Final answer
    x = 64,985.84

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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.