Home / 212,859.17-319,288.75-55,087.16

Finding the Fourth Proportional to 212,859.17, 319,288.75 and 55,087.16

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Solution

The fourth proportional to 212,859.17, 319,288.75 and 55,087.16 is: 82,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,859.17 : 319,288.75 = 55,087.16 : x
  2. Step 2: Convert to fraction form
    212,859.17/319,288.75 = 55,087.16/x
  3. Step 3: Cross multiply
    212,859.17x = 319,288.75 × 55,087.16
  4. Step 4: Simplify right side
    212,859.17x = 17,588,711,117.95
  5. Step 5: Solve for x
    x = 17,588,711,117.95/212,859.17
  6. Step 6: Final answer
    x = 82,630.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.