Home / 71,387.04-98,513.94-39,555.60

Finding the Fourth Proportional to 71,387.04, 98,513.94 and 39,555.60

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Solution

The fourth proportional to 71,387.04, 98,513.94 and 39,555.60 is: 54,586.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,387.04 : 98,513.94 = 39,555.60 : x
  2. Step 2: Convert to fraction form
    71,387.04/98,513.94 = 39,555.60/x
  3. Step 3: Cross multiply
    71,387.04x = 98,513.94 × 39,555.60
  4. Step 4: Simplify right side
    71,387.04x = 3,896,778,005.06
  5. Step 5: Solve for x
    x = 3,896,778,005.06/71,387.04
  6. Step 6: Final answer
    x = 54,586.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.