Home / 77,344.02-115,847.55-47,769.30

Finding the Fourth Proportional to 77,344.02, 115,847.55 and 47,769.30

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Solution

The fourth proportional to 77,344.02, 115,847.55 and 47,769.30 is: 71,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,344.02 : 115,847.55 = 47,769.30 : x
  2. Step 2: Convert to fraction form
    77,344.02/115,847.55 = 47,769.30/x
  3. Step 3: Cross multiply
    77,344.02x = 115,847.55 × 47,769.30
  4. Step 4: Simplify right side
    77,344.02x = 5,533,956,370.22
  5. Step 5: Solve for x
    x = 5,533,956,370.22/77,344.02
  6. Step 6: Final answer
    x = 71,549.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.