Home / 57,018.88-78,683.57-31,176.95

Finding the Fourth Proportional to 57,018.88, 78,683.57 and 31,176.95

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Solution

The fourth proportional to 57,018.88, 78,683.57 and 31,176.95 is: 43,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.88 : 78,683.57 = 31,176.95 : x
  2. Step 2: Convert to fraction form
    57,018.88/78,683.57 = 31,176.95/x
  3. Step 3: Cross multiply
    57,018.88x = 78,683.57 × 31,176.95
  4. Step 4: Simplify right side
    57,018.88x = 2,453,113,727.71
  5. Step 5: Solve for x
    x = 2,453,113,727.71/57,018.88
  6. Step 6: Final answer
    x = 43,022.84

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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.