Home / 56,479.24-77,938.74-31,328.20

Finding the Fourth Proportional to 56,479.24, 77,938.74 and 31,328.20

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Solution

The fourth proportional to 56,479.24, 77,938.74 and 31,328.20 is: 43,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,479.24 : 77,938.74 = 31,328.20 : x
  2. Step 2: Convert to fraction form
    56,479.24/77,938.74 = 31,328.20/x
  3. Step 3: Cross multiply
    56,479.24x = 77,938.74 × 31,328.20
  4. Step 4: Simplify right side
    56,479.24x = 2,441,680,434.47
  5. Step 5: Solve for x
    x = 2,441,680,434.47/56,479.24
  6. Step 6: Final answer
    x = 43,231.47

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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.