Home / 67,638.32-93,358.60-38,961.28

Finding the Fourth Proportional to 67,638.32, 93,358.60 and 38,961.28

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Solution

The fourth proportional to 67,638.32, 93,358.60 and 38,961.28 is: 53,776.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,638.32 : 93,358.60 = 38,961.28 : x
  2. Step 2: Convert to fraction form
    67,638.32/93,358.60 = 38,961.28/x
  3. Step 3: Cross multiply
    67,638.32x = 93,358.60 × 38,961.28
  4. Step 4: Simplify right side
    67,638.32x = 3,637,370,555.01
  5. Step 5: Solve for x
    x = 3,637,370,555.01/67,638.32
  6. Step 6: Final answer
    x = 53,776.77

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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.