Home / 77,343.02-115,846.05-47,768.30

Finding the Fourth Proportional to 77,343.02, 115,846.05 and 47,768.30

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Solution

The fourth proportional to 77,343.02, 115,846.05 and 47,768.30 is: 71,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,343.02 : 115,846.05 = 47,768.30 : x
  2. Step 2: Convert to fraction form
    77,343.02/115,846.05 = 47,768.30/x
  3. Step 3: Cross multiply
    77,343.02x = 115,846.05 × 47,768.30
  4. Step 4: Simplify right side
    77,343.02x = 5,533,768,870.22
  5. Step 5: Solve for x
    x = 5,533,768,870.22/77,343.02
  6. Step 6: Final answer
    x = 71,548.39

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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.