Home / 76,870.20-106,091.28-45,051.84

Finding the Fourth Proportional to 76,870.20, 106,091.28 and 45,051.84

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Solution

The fourth proportional to 76,870.20, 106,091.28 and 45,051.84 is: 62,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,870.20 : 106,091.28 = 45,051.84 : x
  2. Step 2: Convert to fraction form
    76,870.20/106,091.28 = 45,051.84/x
  3. Step 3: Cross multiply
    76,870.20x = 106,091.28 × 45,051.84
  4. Step 4: Simplify right side
    76,870.20x = 4,779,607,371.96
  5. Step 5: Solve for x
    x = 4,779,607,371.96/76,870.20
  6. Step 6: Final answer
    x = 62,177.64

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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.