Home / 64,861.46-89,495.19-39,381.23

Finding the Fourth Proportional to 64,861.46, 89,495.19 and 39,381.23

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Solution

The fourth proportional to 64,861.46, 89,495.19 and 39,381.23 is: 54,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,861.46 : 89,495.19 = 39,381.23 : x
  2. Step 2: Convert to fraction form
    64,861.46/89,495.19 = 39,381.23/x
  3. Step 3: Cross multiply
    64,861.46x = 89,495.19 × 39,381.23
  4. Step 4: Simplify right side
    64,861.46x = 3,524,430,213.81
  5. Step 5: Solve for x
    x = 3,524,430,213.81/64,861.46
  6. Step 6: Final answer
    x = 54,337.82

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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.