Home / 65,710.18-90,680.08-35,495.50

Finding the Fourth Proportional to 65,710.18, 90,680.08 and 35,495.50

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Solution

The fourth proportional to 65,710.18, 90,680.08 and 35,495.50 is: 48,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,710.18 : 90,680.08 = 35,495.50 : x
  2. Step 2: Convert to fraction form
    65,710.18/90,680.08 = 35,495.50/x
  3. Step 3: Cross multiply
    65,710.18x = 90,680.08 × 35,495.50
  4. Step 4: Simplify right side
    65,710.18x = 3,218,734,779.64
  5. Step 5: Solve for x
    x = 3,218,734,779.64/65,710.18
  6. Step 6: Final answer
    x = 48,983.81

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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.