Home / 77,312.48-106,742.61-59,375.43

Finding the Fourth Proportional to 77,312.48, 106,742.61 and 59,375.43

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Solution

The fourth proportional to 77,312.48, 106,742.61 and 59,375.43 is: 81,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312.48 : 106,742.61 = 59,375.43 : x
  2. Step 2: Convert to fraction form
    77,312.48/106,742.61 = 59,375.43/x
  3. Step 3: Cross multiply
    77,312.48x = 106,742.61 × 59,375.43
  4. Step 4: Simplify right side
    77,312.48x = 6,337,888,368.07
  5. Step 5: Solve for x
    x = 6,337,888,368.07/77,312.48
  6. Step 6: Final answer
    x = 81,977.56

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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.