Home / 64,288.48-88,750.24-40,428.32

Finding the Fourth Proportional to 64,288.48, 88,750.24 and 40,428.32

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Solution

The fourth proportional to 64,288.48, 88,750.24 and 40,428.32 is: 55,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,288.48 : 88,750.24 = 40,428.32 : x
  2. Step 2: Convert to fraction form
    64,288.48/88,750.24 = 40,428.32/x
  3. Step 3: Cross multiply
    64,288.48x = 88,750.24 × 40,428.32
  4. Step 4: Simplify right side
    64,288.48x = 3,588,023,102.80
  5. Step 5: Solve for x
    x = 3,588,023,102.80/64,288.48
  6. Step 6: Final answer
    x = 55,811.29

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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.