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Finding the Fourth Proportional to 65,303.96, 90,113.16 and 36,624.80

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Solution

The fourth proportional to 65,303.96, 90,113.16 and 36,624.80 is: 50,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,303.96 : 90,113.16 = 36,624.80 : x
  2. Step 2: Convert to fraction form
    65,303.96/90,113.16 = 36,624.80/x
  3. Step 3: Cross multiply
    65,303.96x = 90,113.16 × 36,624.80
  4. Step 4: Simplify right side
    65,303.96x = 3,300,376,318.11
  5. Step 5: Solve for x
    x = 3,300,376,318.11/65,303.96
  6. Step 6: Final answer
    x = 50,538.69

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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.