Home / 67,278.64-92,172.16-64,756.32

Finding the Fourth Proportional to 67,278.64, 92,172.16 and 64,756.32

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Solution

The fourth proportional to 67,278.64, 92,172.16 and 64,756.32 is: 88,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,278.64 : 92,172.16 = 64,756.32 : x
  2. Step 2: Convert to fraction form
    67,278.64/92,172.16 = 64,756.32/x
  3. Step 3: Cross multiply
    67,278.64x = 92,172.16 × 64,756.32
  4. Step 4: Simplify right side
    67,278.64x = 5,968,729,888.05
  5. Step 5: Solve for x
    x = 5,968,729,888.05/67,278.64
  6. Step 6: Final answer
    x = 88,716.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.