Home / 65,737.09-90,723.56-38,888.23

Finding the Fourth Proportional to 65,737.09, 90,723.56 and 38,888.23

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Solution

The fourth proportional to 65,737.09, 90,723.56 and 38,888.23 is: 53,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,737.09 : 90,723.56 = 38,888.23 : x
  2. Step 2: Convert to fraction form
    65,737.09/90,723.56 = 38,888.23/x
  3. Step 3: Cross multiply
    65,737.09x = 90,723.56 × 38,888.23
  4. Step 4: Simplify right side
    65,737.09x = 3,528,078,667.70
  5. Step 5: Solve for x
    x = 3,528,078,667.70/65,737.09
  6. Step 6: Final answer
    x = 53,669.53

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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.