Home / 77,328.18-106,764.31-59,391.14

Finding the Fourth Proportional to 77,328.18, 106,764.31 and 59,391.14

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Solution

The fourth proportional to 77,328.18, 106,764.31 and 59,391.14 is: 81,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,328.18 : 106,764.31 = 59,391.14 : x
  2. Step 2: Convert to fraction form
    77,328.18/106,764.31 = 59,391.14/x
  3. Step 3: Cross multiply
    77,328.18x = 106,764.31 × 59,391.14
  4. Step 4: Simplify right side
    77,328.18x = 6,340,854,082.21
  5. Step 5: Solve for x
    x = 6,340,854,082.21/77,328.18
  6. Step 6: Final answer
    x = 81,999.27

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1.5x scale

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.