Home / 65,633.12-90,580.50-40,156.46

Finding the Fourth Proportional to 65,633.12, 90,580.50 and 40,156.46

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Solution

The fourth proportional to 65,633.12, 90,580.50 and 40,156.46 is: 55,420.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,633.12 : 90,580.50 = 40,156.46 : x
  2. Step 2: Convert to fraction form
    65,633.12/90,580.50 = 40,156.46/x
  3. Step 3: Cross multiply
    65,633.12x = 90,580.50 × 40,156.46
  4. Step 4: Simplify right side
    65,633.12x = 3,637,392,225.03
  5. Step 5: Solve for x
    x = 3,637,392,225.03/65,633.12
  6. Step 6: Final answer
    x = 55,420.07

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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.