Home / 91,165.01-125,807.45-50,878.31

Finding the Fourth Proportional to 91,165.01, 125,807.45 and 50,878.31

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Solution

The fourth proportional to 91,165.01, 125,807.45 and 50,878.31 is: 70,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,165.01 : 125,807.45 = 50,878.31 : x
  2. Step 2: Convert to fraction form
    91,165.01/125,807.45 = 50,878.31/x
  3. Step 3: Cross multiply
    91,165.01x = 125,807.45 × 50,878.31
  4. Step 4: Simplify right side
    91,165.01x = 6,400,869,557.98
  5. Step 5: Solve for x
    x = 6,400,869,557.98/91,165.01
  6. Step 6: Final answer
    x = 70,211.91

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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.