Home / 91,828.40-137,742.60-52,462.40

Finding the Fourth Proportional to 91,828.40, 137,742.60 and 52,462.40

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Solution

The fourth proportional to 91,828.40, 137,742.60 and 52,462.40 is: 78,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,828.40 : 137,742.60 = 52,462.40 : x
  2. Step 2: Convert to fraction form
    91,828.40/137,742.60 = 52,462.40/x
  3. Step 3: Cross multiply
    91,828.40x = 137,742.60 × 52,462.40
  4. Step 4: Simplify right side
    91,828.40x = 7,226,307,378.24
  5. Step 5: Solve for x
    x = 7,226,307,378.24/91,828.40
  6. Step 6: Final answer
    x = 78,693.60

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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.