Home / 90,309.12-124,627.48-54,492.22

Finding the Fourth Proportional to 90,309.12, 124,627.48 and 54,492.22

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Solution

The fourth proportional to 90,309.12, 124,627.48 and 54,492.22 is: 75,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,309.12 : 124,627.48 = 54,492.22 : x
  2. Step 2: Convert to fraction form
    90,309.12/124,627.48 = 54,492.22/x
  3. Step 3: Cross multiply
    90,309.12x = 124,627.48 × 54,492.22
  4. Step 4: Simplify right side
    90,309.12x = 6,791,228,058.21
  5. Step 5: Solve for x
    x = 6,791,228,058.21/90,309.12
  6. Step 6: Final answer
    x = 75,199.80

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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.