Home / 55,280.74-76,287.44-31,407.45

Finding the Fourth Proportional to 55,280.74, 76,287.44 and 31,407.45

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Solution

The fourth proportional to 55,280.74, 76,287.44 and 31,407.45 is: 43,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,280.74 : 76,287.44 = 31,407.45 : x
  2. Step 2: Convert to fraction form
    55,280.74/76,287.44 = 31,407.45/x
  3. Step 3: Cross multiply
    55,280.74x = 76,287.44 × 31,407.45
  4. Step 4: Simplify right side
    55,280.74x = 2,395,994,035.95
  5. Step 5: Solve for x
    x = 2,395,994,035.95/55,280.74
  6. Step 6: Final answer
    x = 43,342.30

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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.