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Finding the Fourth Proportional to 65,564.16, 90,478.40 and 36,883.84

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Solution

The fourth proportional to 65,564.16, 90,478.40 and 36,883.84 is: 50,899.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,564.16 : 90,478.40 = 36,883.84 : x
  2. Step 2: Convert to fraction form
    65,564.16/90,478.40 = 36,883.84/x
  3. Step 3: Cross multiply
    65,564.16x = 90,478.40 × 36,883.84
  4. Step 4: Simplify right side
    65,564.16x = 3,337,190,829.06
  5. Step 5: Solve for x
    x = 3,337,190,829.06/65,564.16
  6. Step 6: Final answer
    x = 50,899.62

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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.