Home / 90,403.44-124,731.20-52,670.40

Finding the Fourth Proportional to 90,403.44, 124,731.20 and 52,670.40

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Solution

The fourth proportional to 90,403.44, 124,731.20 and 52,670.40 is: 72,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,403.44 : 124,731.20 = 52,670.40 : x
  2. Step 2: Convert to fraction form
    90,403.44/124,731.20 = 52,670.40/x
  3. Step 3: Cross multiply
    90,403.44x = 124,731.20 × 52,670.40
  4. Step 4: Simplify right side
    90,403.44x = 6,569,642,196.48
  5. Step 5: Solve for x
    x = 6,569,642,196.48/90,403.44
  6. Step 6: Final answer
    x = 72,670.27

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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.