Home / 84,368.10-126,564.30-28,210.80

Finding the Fourth Proportional to 84,368.10, 126,564.30 and 28,210.80

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Solution

The fourth proportional to 84,368.10, 126,564.30 and 28,210.80 is: 42,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,368.10 : 126,564.30 = 28,210.80 : x
  2. Step 2: Convert to fraction form
    84,368.10/126,564.30 = 28,210.80/x
  3. Step 3: Cross multiply
    84,368.10x = 126,564.30 × 28,210.80
  4. Step 4: Simplify right side
    84,368.10x = 3,570,480,154.44
  5. Step 5: Solve for x
    x = 3,570,480,154.44/84,368.10
  6. Step 6: Final answer
    x = 42,320.26

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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.