Home / 91,830.20-137,682.41-46,764.32

Finding the Fourth Proportional to 91,830.20, 137,682.41 and 46,764.32

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Solution

The fourth proportional to 91,830.20, 137,682.41 and 46,764.32 is: 70,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,830.20 : 137,682.41 = 46,764.32 : x
  2. Step 2: Convert to fraction form
    91,830.20/137,682.41 = 46,764.32/x
  3. Step 3: Cross multiply
    91,830.20x = 137,682.41 × 46,764.32
  4. Step 4: Simplify right side
    91,830.20x = 6,438,623,818.49
  5. Step 5: Solve for x
    x = 6,438,623,818.49/91,830.20
  6. Step 6: Final answer
    x = 70,114.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.