Home / 66,010.79-91,130.28-50,981.24

Finding the Fourth Proportional to 66,010.79, 91,130.28 and 50,981.24

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Solution

The fourth proportional to 66,010.79, 91,130.28 and 50,981.24 is: 70,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,010.79 : 91,130.28 = 50,981.24 : x
  2. Step 2: Convert to fraction form
    66,010.79/91,130.28 = 50,981.24/x
  3. Step 3: Cross multiply
    66,010.79x = 91,130.28 × 50,981.24
  4. Step 4: Simplify right side
    66,010.79x = 4,645,934,220.30
  5. Step 5: Solve for x
    x = 4,645,934,220.30/66,010.79
  6. Step 6: Final answer
    x = 70,381.44

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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.