Home / 84,891.18-127,275.78-39,887.16

Finding the Fourth Proportional to 84,891.18, 127,275.78 and 39,887.16

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Solution

The fourth proportional to 84,891.18, 127,275.78 and 39,887.16 is: 59,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,891.18 : 127,275.78 = 39,887.16 : x
  2. Step 2: Convert to fraction form
    84,891.18/127,275.78 = 39,887.16/x
  3. Step 3: Cross multiply
    84,891.18x = 127,275.78 × 39,887.16
  4. Step 4: Simplify right side
    84,891.18x = 5,076,669,400.98
  5. Step 5: Solve for x
    x = 5,076,669,400.98/84,891.18
  6. Step 6: Final answer
    x = 59,802.08

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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.