Home / 84,323.25-116,230.75-57,090.65

Finding the Fourth Proportional to 84,323.25, 116,230.75 and 57,090.65

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Solution

The fourth proportional to 84,323.25, 116,230.75 and 57,090.65 is: 78,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,323.25 : 116,230.75 = 57,090.65 : x
  2. Step 2: Convert to fraction form
    84,323.25/116,230.75 = 57,090.65/x
  3. Step 3: Cross multiply
    84,323.25x = 116,230.75 × 57,090.65
  4. Step 4: Simplify right side
    84,323.25x = 6,635,688,343.61
  5. Step 5: Solve for x
    x = 6,635,688,343.61/84,323.25
  6. Step 6: Final answer
    x = 78,693.46

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1.5x scale

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.