Home / 85,582.48-118,032.12-64,122.64

Finding the Fourth Proportional to 85,582.48, 118,032.12 and 64,122.64

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Solution

The fourth proportional to 85,582.48, 118,032.12 and 64,122.64 is: 88,435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,582.48 : 118,032.12 = 64,122.64 : x
  2. Step 2: Convert to fraction form
    85,582.48/118,032.12 = 64,122.64/x
  3. Step 3: Cross multiply
    85,582.48x = 118,032.12 × 64,122.64
  4. Step 4: Simplify right side
    85,582.48x = 7,568,531,139.20
  5. Step 5: Solve for x
    x = 7,568,531,139.20/85,582.48
  6. Step 6: Final answer
    x = 88,435.52

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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.