Home / 64,754.28-89,374.14-40,864.86

Finding the Fourth Proportional to 64,754.28, 89,374.14 and 40,864.86

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Solution

The fourth proportional to 64,754.28, 89,374.14 and 40,864.86 is: 56,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,754.28 : 89,374.14 = 40,864.86 : x
  2. Step 2: Convert to fraction form
    64,754.28/89,374.14 = 40,864.86/x
  3. Step 3: Cross multiply
    64,754.28x = 89,374.14 × 40,864.86
  4. Step 4: Simplify right side
    64,754.28x = 3,652,261,718.72
  5. Step 5: Solve for x
    x = 3,652,261,718.72/64,754.28
  6. Step 6: Final answer
    x = 56,401.86

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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.