Home / 65,394.71-90,247.66-38,538.35

Finding the Fourth Proportional to 65,394.71, 90,247.66 and 38,538.35

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Solution

The fourth proportional to 65,394.71, 90,247.66 and 38,538.35 is: 53,184.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,394.71 : 90,247.66 = 38,538.35 : x
  2. Step 2: Convert to fraction form
    65,394.71/90,247.66 = 38,538.35/x
  3. Step 3: Cross multiply
    65,394.71x = 90,247.66 × 38,538.35
  4. Step 4: Simplify right side
    65,394.71x = 3,477,995,360.18
  5. Step 5: Solve for x
    x = 3,477,995,360.18/65,394.71
  6. Step 6: Final answer
    x = 53,184.66

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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.