Home / 77,352.16-106,739.35-42,898

Finding the Fourth Proportional to 77,352.16, 106,739.35 and 42,898

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Solution

The fourth proportional to 77,352.16, 106,739.35 and 42,898 is: 59,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,352.16 : 106,739.35 = 42,898 : x
  2. Step 2: Convert to fraction form
    77,352.16/106,739.35 = 42,898/x
  3. Step 3: Cross multiply
    77,352.16x = 106,739.35 × 42,898
  4. Step 4: Simplify right side
    77,352.16x = 4,578,904,636.30
  5. Step 5: Solve for x
    x = 4,578,904,636.30/77,352.16
  6. Step 6: Final answer
    x = 59,195.56

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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.