Home / 60,664.80-83,997.36-55,999.20

Finding the Fourth Proportional to 60,664.80, 83,997.36 and 55,999.20

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Solution

The fourth proportional to 60,664.80, 83,997.36 and 55,999.20 is: 77,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,664.80 : 83,997.36 = 55,999.20 : x
  2. Step 2: Convert to fraction form
    60,664.80/83,997.36 = 55,999.20/x
  3. Step 3: Cross multiply
    60,664.80x = 83,997.36 × 55,999.20
  4. Step 4: Simplify right side
    60,664.80x = 4,703,784,962.11
  5. Step 5: Solve for x
    x = 4,703,784,962.11/60,664.80
  6. Step 6: Final answer
    x = 77,537.30

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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.