Home / 76,977.03-106,228.45-42,985.41

Finding the Fourth Proportional to 76,977.03, 106,228.45 and 42,985.41

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Solution

The fourth proportional to 76,977.03, 106,228.45 and 42,985.41 is: 59,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,977.03 : 106,228.45 = 42,985.41 : x
  2. Step 2: Convert to fraction form
    76,977.03/106,228.45 = 42,985.41/x
  3. Step 3: Cross multiply
    76,977.03x = 106,228.45 × 42,985.41
  4. Step 4: Simplify right side
    76,977.03x = 4,566,273,370.61
  5. Step 5: Solve for x
    x = 4,566,273,370.61/76,977.03
  6. Step 6: Final answer
    x = 59,319.94

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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.