Home / 90,276.36-135,334.20-42,862.20

Finding the Fourth Proportional to 90,276.36, 135,334.20 and 42,862.20

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Solution

The fourth proportional to 90,276.36, 135,334.20 and 42,862.20 is: 64,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.36 : 135,334.20 = 42,862.20 : x
  2. Step 2: Convert to fraction form
    90,276.36/135,334.20 = 42,862.20/x
  3. Step 3: Cross multiply
    90,276.36x = 135,334.20 × 42,862.20
  4. Step 4: Simplify right side
    90,276.36x = 5,800,721,547.24
  5. Step 5: Solve for x
    x = 5,800,721,547.24/90,276.36
  6. Step 6: Final answer
    x = 64,255.16

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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.