Home / 57,281.76-86,054.40-40,682.16

Finding the Fourth Proportional to 57,281.76, 86,054.40 and 40,682.16

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Solution

The fourth proportional to 57,281.76, 86,054.40 and 40,682.16 is: 61,116.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,281.76 : 86,054.40 = 40,682.16 : x
  2. Step 2: Convert to fraction form
    57,281.76/86,054.40 = 40,682.16/x
  3. Step 3: Cross multiply
    57,281.76x = 86,054.40 × 40,682.16
  4. Step 4: Simplify right side
    57,281.76x = 3,500,878,869.50
  5. Step 5: Solve for x
    x = 3,500,878,869.50/57,281.76
  6. Step 6: Final answer
    x = 61,116.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.