Home / 77,013.56-115,548.96-47,089.20

Finding the Fourth Proportional to 77,013.56, 115,548.96 and 47,089.20

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Solution

The fourth proportional to 77,013.56, 115,548.96 and 47,089.20 is: 70,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,013.56 : 115,548.96 = 47,089.20 : x
  2. Step 2: Convert to fraction form
    77,013.56/115,548.96 = 47,089.20/x
  3. Step 3: Cross multiply
    77,013.56x = 115,548.96 × 47,089.20
  4. Step 4: Simplify right side
    77,013.56x = 5,441,108,087.23
  5. Step 5: Solve for x
    x = 5,441,108,087.23/77,013.56
  6. Step 6: Final answer
    x = 70,651.30

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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.