Home / 78,170.17-107,834.02-47,962.23

Finding the Fourth Proportional to 78,170.17, 107,834.02 and 47,962.23

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Solution

The fourth proportional to 78,170.17, 107,834.02 and 47,962.23 is: 66,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,170.17 : 107,834.02 = 47,962.23 : x
  2. Step 2: Convert to fraction form
    78,170.17/107,834.02 = 47,962.23/x
  3. Step 3: Cross multiply
    78,170.17x = 107,834.02 × 47,962.23
  4. Step 4: Simplify right side
    78,170.17x = 5,171,960,069.06
  5. Step 5: Solve for x
    x = 5,171,960,069.06/78,170.17
  6. Step 6: Final answer
    x = 66,162.84

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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.