Home / 99,579.35-137,376.32-59,270.51

Finding the Fourth Proportional to 99,579.35, 137,376.32 and 59,270.51

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Solution

The fourth proportional to 99,579.35, 137,376.32 and 59,270.51 is: 81,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,579.35 : 137,376.32 = 59,270.51 : x
  2. Step 2: Convert to fraction form
    99,579.35/137,376.32 = 59,270.51/x
  3. Step 3: Cross multiply
    99,579.35x = 137,376.32 × 59,270.51
  4. Step 4: Simplify right side
    99,579.35x = 8,142,364,548.32
  5. Step 5: Solve for x
    x = 8,142,364,548.32/99,579.35
  6. Step 6: Final answer
    x = 81,767.60

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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.