Home / 85,582.58-128,346.55-29,409.14

Finding the Fourth Proportional to 85,582.58, 128,346.55 and 29,409.14

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Solution

The fourth proportional to 85,582.58, 128,346.55 and 29,409.14 is: 44,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,582.58 : 128,346.55 = 29,409.14 : x
  2. Step 2: Convert to fraction form
    85,582.58/128,346.55 = 29,409.14/x
  3. Step 3: Cross multiply
    85,582.58x = 128,346.55 × 29,409.14
  4. Step 4: Simplify right side
    85,582.58x = 3,774,561,657.47
  5. Step 5: Solve for x
    x = 3,774,561,657.47/85,582.58
  6. Step 6: Final answer
    x = 44,104.32

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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.