Home / 75,069.73-103,477.12-59,128.93

Finding the Fourth Proportional to 75,069.73, 103,477.12 and 59,128.93

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Solution

The fourth proportional to 75,069.73, 103,477.12 and 59,128.93 is: 81,504.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,069.73 : 103,477.12 = 59,128.93 : x
  2. Step 2: Convert to fraction form
    75,069.73/103,477.12 = 59,128.93/x
  3. Step 3: Cross multiply
    75,069.73x = 103,477.12 × 59,128.93
  4. Step 4: Simplify right side
    75,069.73x = 6,118,491,385.08
  5. Step 5: Solve for x
    x = 6,118,491,385.08/75,069.73
  6. Step 6: Final answer
    x = 81,504.11

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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.