Home / 76,530.06-105,611.40-42,537.48

Finding the Fourth Proportional to 76,530.06, 105,611.40 and 42,537.48

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Solution

The fourth proportional to 76,530.06, 105,611.40 and 42,537.48 is: 58,701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,530.06 : 105,611.40 = 42,537.48 : x
  2. Step 2: Convert to fraction form
    76,530.06/105,611.40 = 42,537.48/x
  3. Step 3: Cross multiply
    76,530.06x = 105,611.40 × 42,537.48
  4. Step 4: Simplify right side
    76,530.06x = 4,492,442,815.27
  5. Step 5: Solve for x
    x = 4,492,442,815.27/76,530.06
  6. Step 6: Final answer
    x = 58,701.68

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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.