Home / 79,307.02-109,464.51-47,500.78

Finding the Fourth Proportional to 79,307.02, 109,464.51 and 47,500.78

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Solution

The fourth proportional to 79,307.02, 109,464.51 and 47,500.78 is: 65,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,307.02 : 109,464.51 = 47,500.78 : x
  2. Step 2: Convert to fraction form
    79,307.02/109,464.51 = 47,500.78/x
  3. Step 3: Cross multiply
    79,307.02x = 109,464.51 × 47,500.78
  4. Step 4: Simplify right side
    79,307.02x = 5,199,649,607.32
  5. Step 5: Solve for x
    x = 5,199,649,607.32/79,307.02
  6. Step 6: Final answer
    x = 65,563.55

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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.