Home / 62,421.20-93,631.80-58,144.40

Finding the Fourth Proportional to 62,421.20, 93,631.80 and 58,144.40

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Solution

The fourth proportional to 62,421.20, 93,631.80 and 58,144.40 is: 87,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,421.20 : 93,631.80 = 58,144.40 : x
  2. Step 2: Convert to fraction form
    62,421.20/93,631.80 = 58,144.40/x
  3. Step 3: Cross multiply
    62,421.20x = 93,631.80 × 58,144.40
  4. Step 4: Simplify right side
    62,421.20x = 5,444,164,831.92
  5. Step 5: Solve for x
    x = 5,444,164,831.92/62,421.20
  6. Step 6: Final answer
    x = 87,216.60

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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.