Home / 64,714.30-89,280.91-40,173.60

Finding the Fourth Proportional to 64,714.30, 89,280.91 and 40,173.60

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Solution

The fourth proportional to 64,714.30, 89,280.91 and 40,173.60 is: 55,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,714.30 : 89,280.91 = 40,173.60 : x
  2. Step 2: Convert to fraction form
    64,714.30/89,280.91 = 40,173.60/x
  3. Step 3: Cross multiply
    64,714.30x = 89,280.91 × 40,173.60
  4. Step 4: Simplify right side
    64,714.30x = 3,586,735,338.92
  5. Step 5: Solve for x
    x = 3,586,735,338.92/64,714.30
  6. Step 6: Final answer
    x = 55,424.16

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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.