Home / 84,416.10-126,558.48-42,274.53

Finding the Fourth Proportional to 84,416.10, 126,558.48 and 42,274.53

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Solution

The fourth proportional to 84,416.10, 126,558.48 and 42,274.53 is: 63,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,416.10 : 126,558.48 = 42,274.53 : x
  2. Step 2: Convert to fraction form
    84,416.10/126,558.48 = 42,274.53/x
  3. Step 3: Cross multiply
    84,416.10x = 126,558.48 × 42,274.53
  4. Step 4: Simplify right side
    84,416.10x = 5,350,200,259.51
  5. Step 5: Solve for x
    x = 5,350,200,259.51/84,416.10
  6. Step 6: Final answer
    x = 63,378.91

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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.