Home / 99,356.40-137,063.61-59,041.62

Finding the Fourth Proportional to 99,356.40, 137,063.61 and 59,041.62

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Solution

The fourth proportional to 99,356.40, 137,063.61 and 59,041.62 is: 81,448.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,356.40 : 137,063.61 = 59,041.62 : x
  2. Step 2: Convert to fraction form
    99,356.40/137,063.61 = 59,041.62/x
  3. Step 3: Cross multiply
    99,356.40x = 137,063.61 × 59,041.62
  4. Step 4: Simplify right side
    99,356.40x = 8,092,457,577.45
  5. Step 5: Solve for x
    x = 8,092,457,577.45/99,356.40
  6. Step 6: Final answer
    x = 81,448.78

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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.