Home / 82,973.60-124,460.40-51,408.80

Finding the Fourth Proportional to 82,973.60, 124,460.40 and 51,408.80

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Solution

The fourth proportional to 82,973.60, 124,460.40 and 51,408.80 is: 77,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,973.60 : 124,460.40 = 51,408.80 : x
  2. Step 2: Convert to fraction form
    82,973.60/124,460.40 = 51,408.80/x
  3. Step 3: Cross multiply
    82,973.60x = 124,460.40 × 51,408.80
  4. Step 4: Simplify right side
    82,973.60x = 6,398,359,811.52
  5. Step 5: Solve for x
    x = 6,398,359,811.52/82,973.60
  6. Step 6: Final answer
    x = 77,113.20

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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.