Home / 99,847.28-137,807.05-59,009.74

Finding the Fourth Proportional to 99,847.28, 137,807.05 and 59,009.74

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Solution

The fourth proportional to 99,847.28, 137,807.05 and 59,009.74 is: 81,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,847.28 : 137,807.05 = 59,009.74 : x
  2. Step 2: Convert to fraction form
    99,847.28/137,807.05 = 59,009.74/x
  3. Step 3: Cross multiply
    99,847.28x = 137,807.05 × 59,009.74
  4. Step 4: Simplify right side
    99,847.28x = 8,131,958,030.89
  5. Step 5: Solve for x
    x = 8,131,958,030.89/99,847.28
  6. Step 6: Final answer
    x = 81,443.96

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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.