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Finding the Fourth Proportional to 65,117.38, 89,870.43 and 36,828.67

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Solution

The fourth proportional to 65,117.38, 89,870.43 and 36,828.67 is: 50,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,117.38 : 89,870.43 = 36,828.67 : x
  2. Step 2: Convert to fraction form
    65,117.38/89,870.43 = 36,828.67/x
  3. Step 3: Cross multiply
    65,117.38x = 89,870.43 × 36,828.67
  4. Step 4: Simplify right side
    65,117.38x = 3,309,808,409.23
  5. Step 5: Solve for x
    x = 3,309,808,409.23/65,117.38
  6. Step 6: Final answer
    x = 50,828.34

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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.