Home / 101,005.53-139,387.08-55,683.35

Finding the Fourth Proportional to 101,005.53, 139,387.08 and 55,683.35

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Solution

The fourth proportional to 101,005.53, 139,387.08 and 55,683.35 is: 76,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,005.53 : 139,387.08 = 55,683.35 : x
  2. Step 2: Convert to fraction form
    101,005.53/139,387.08 = 55,683.35/x
  3. Step 3: Cross multiply
    101,005.53x = 139,387.08 × 55,683.35
  4. Step 4: Simplify right side
    101,005.53x = 7,761,539,282.48
  5. Step 5: Solve for x
    x = 7,761,539,282.48/101,005.53
  6. Step 6: Final answer
    x = 76,842.71

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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.