Home / 76,816.33-106,014.40-42,830.35

Finding the Fourth Proportional to 76,816.33, 106,014.40 and 42,830.35

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Solution

The fourth proportional to 76,816.33, 106,014.40 and 42,830.35 is: 59,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,816.33 : 106,014.40 = 42,830.35 : x
  2. Step 2: Convert to fraction form
    76,816.33/106,014.40 = 42,830.35/x
  3. Step 3: Cross multiply
    76,816.33x = 106,014.40 × 42,830.35
  4. Step 4: Simplify right side
    76,816.33x = 4,540,633,857.04
  5. Step 5: Solve for x
    x = 4,540,633,857.04/76,816.33
  6. Step 6: Final answer
    x = 59,110.27

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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.