Home / 84,407.57-126,548.48-28,214.43

Finding the Fourth Proportional to 84,407.57, 126,548.48 and 28,214.43

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Solution

The fourth proportional to 84,407.57, 126,548.48 and 28,214.43 is: 42,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,407.57 : 126,548.48 = 28,214.43 : x
  2. Step 2: Convert to fraction form
    84,407.57/126,548.48 = 28,214.43/x
  3. Step 3: Cross multiply
    84,407.57x = 126,548.48 × 28,214.43
  4. Step 4: Simplify right side
    84,407.57x = 3,570,492,667.84
  5. Step 5: Solve for x
    x = 3,570,492,667.84/84,407.57
  6. Step 6: Final answer
    x = 42,300.62

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1.5x scale

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.