Home / 65,630.12-90,576.36-40,153.46

Finding the Fourth Proportional to 65,630.12, 90,576.36 and 40,153.46

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Solution

The fourth proportional to 65,630.12, 90,576.36 and 40,153.46 is: 55,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,630.12 : 90,576.36 = 40,153.46 : x
  2. Step 2: Convert to fraction form
    65,630.12/90,576.36 = 40,153.46/x
  3. Step 3: Cross multiply
    65,630.12x = 90,576.36 × 40,153.46
  4. Step 4: Simplify right side
    65,630.12x = 3,636,953,795.32
  5. Step 5: Solve for x
    x = 3,636,953,795.32/65,630.12
  6. Step 6: Final answer
    x = 55,415.93

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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.