Home / 65,638.08-90,569.16-37,338.48

Finding the Fourth Proportional to 65,638.08, 90,569.16 and 37,338.48

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Solution

The fourth proportional to 65,638.08, 90,569.16 and 37,338.48 is: 51,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,638.08 : 90,569.16 = 37,338.48 : x
  2. Step 2: Convert to fraction form
    65,638.08/90,569.16 = 37,338.48/x
  3. Step 3: Cross multiply
    65,638.08x = 90,569.16 × 37,338.48
  4. Step 4: Simplify right side
    65,638.08x = 3,381,714,769.28
  5. Step 5: Solve for x
    x = 3,381,714,769.28/65,638.08
  6. Step 6: Final answer
    x = 51,520.62

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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.