Home / 62,421.60-93,632.40-20,868.60

Finding the Fourth Proportional to 62,421.60, 93,632.40 and 20,868.60

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Solution

The fourth proportional to 62,421.60, 93,632.40 and 20,868.60 is: 31,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,421.60 : 93,632.40 = 20,868.60 : x
  2. Step 2: Convert to fraction form
    62,421.60/93,632.40 = 20,868.60/x
  3. Step 3: Cross multiply
    62,421.60x = 93,632.40 × 20,868.60
  4. Step 4: Simplify right side
    62,421.60x = 1,953,977,102.64
  5. Step 5: Solve for x
    x = 1,953,977,102.64/62,421.60
  6. Step 6: Final answer
    x = 31,302.90

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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.