Home / 64,704.06-89,340.24-63,670.70

Finding the Fourth Proportional to 64,704.06, 89,340.24 and 63,670.70

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Solution

The fourth proportional to 64,704.06, 89,340.24 and 63,670.70 is: 87,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.06 : 89,340.24 = 63,670.70 : x
  2. Step 2: Convert to fraction form
    64,704.06/89,340.24 = 63,670.70/x
  3. Step 3: Cross multiply
    64,704.06x = 89,340.24 × 63,670.70
  4. Step 4: Simplify right side
    64,704.06x = 5,688,355,618.97
  5. Step 5: Solve for x
    x = 5,688,355,618.97/64,704.06
  6. Step 6: Final answer
    x = 87,913.43

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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.