Home / 76,837.60-106,036.41-42,848.20

Finding the Fourth Proportional to 76,837.60, 106,036.41 and 42,848.20

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Solution

The fourth proportional to 76,837.60, 106,036.41 and 42,848.20 is: 59,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,837.60 : 106,036.41 = 42,848.20 : x
  2. Step 2: Convert to fraction form
    76,837.60/106,036.41 = 42,848.20/x
  3. Step 3: Cross multiply
    76,837.60x = 106,036.41 × 42,848.20
  4. Step 4: Simplify right side
    76,837.60x = 4,543,469,302.96
  5. Step 5: Solve for x
    x = 4,543,469,302.96/76,837.60
  6. Step 6: Final answer
    x = 59,130.81

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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.