Home / 90,540.21-124,951.77-52,312.66

Finding the Fourth Proportional to 90,540.21, 124,951.77 and 52,312.66

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Solution

The fourth proportional to 90,540.21, 124,951.77 and 52,312.66 is: 72,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,540.21 : 124,951.77 = 52,312.66 : x
  2. Step 2: Convert to fraction form
    90,540.21/124,951.77 = 52,312.66/x
  3. Step 3: Cross multiply
    90,540.21x = 124,951.77 × 52,312.66
  4. Step 4: Simplify right side
    90,540.21x = 6,536,559,460.41
  5. Step 5: Solve for x
    x = 6,536,559,460.41/90,540.21
  6. Step 6: Final answer
    x = 72,195.10

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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.