Home / 90,493.08-124,838.46-56,479.56

Finding the Fourth Proportional to 90,493.08, 124,838.46 and 56,479.56

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Solution

The fourth proportional to 90,493.08, 124,838.46 and 56,479.56 is: 77,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,493.08 : 124,838.46 = 56,479.56 : x
  2. Step 2: Convert to fraction form
    90,493.08/124,838.46 = 56,479.56/x
  3. Step 3: Cross multiply
    90,493.08x = 124,838.46 × 56,479.56
  4. Step 4: Simplify right side
    90,493.08x = 7,050,821,291.88
  5. Step 5: Solve for x
    x = 7,050,821,291.88/90,493.08
  6. Step 6: Final answer
    x = 77,915.59

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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.