Home / 76,528.60-105,603.40-42,534.42

Finding the Fourth Proportional to 76,528.60, 105,603.40 and 42,534.42

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Solution

The fourth proportional to 76,528.60, 105,603.40 and 42,534.42 is: 58,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,528.60 : 105,603.40 = 42,534.42 : x
  2. Step 2: Convert to fraction form
    76,528.60/105,603.40 = 42,534.42/x
  3. Step 3: Cross multiply
    76,528.60x = 105,603.40 × 42,534.42
  4. Step 4: Simplify right side
    76,528.60x = 4,491,778,786.93
  5. Step 5: Solve for x
    x = 4,491,778,786.93/76,528.60
  6. Step 6: Final answer
    x = 58,694.12

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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.