Home / 79,117.02-118,724-31,727.10

Finding the Fourth Proportional to 79,117.02, 118,724 and 31,727.10

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Solution

The fourth proportional to 79,117.02, 118,724 and 31,727.10 is: 47,610.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.02 : 118,724 = 31,727.10 : x
  2. Step 2: Convert to fraction form
    79,117.02/118,724 = 31,727.10/x
  3. Step 3: Cross multiply
    79,117.02x = 118,724 × 31,727.10
  4. Step 4: Simplify right side
    79,117.02x = 3,766,768,220.40
  5. Step 5: Solve for x
    x = 3,766,768,220.40/79,117.02
  6. Step 6: Final answer
    x = 47,610.09

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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.