Home / 64,423.80-96,708.60-38,143.35

Finding the Fourth Proportional to 64,423.80, 96,708.60 and 38,143.35

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Solution

The fourth proportional to 64,423.80, 96,708.60 and 38,143.35 is: 57,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,423.80 : 96,708.60 = 38,143.35 : x
  2. Step 2: Convert to fraction form
    64,423.80/96,708.60 = 38,143.35/x
  3. Step 3: Cross multiply
    64,423.80x = 96,708.60 × 38,143.35
  4. Step 4: Simplify right side
    64,423.80x = 3,688,789,977.81
  5. Step 5: Solve for x
    x = 3,688,789,977.81/64,423.80
  6. Step 6: Final answer
    x = 57,258.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.