Home / 54,840.15-75,680.78-30,967.00

Finding the Fourth Proportional to 54,840.15, 75,680.78 and 30,967.00

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Solution

The fourth proportional to 54,840.15, 75,680.78 and 30,967.00 is: 42,735.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,840.15 : 75,680.78 = 30,967.00 : x
  2. Step 2: Convert to fraction form
    54,840.15/75,680.78 = 30,967.00/x
  3. Step 3: Cross multiply
    54,840.15x = 75,680.78 × 30,967.00
  4. Step 4: Simplify right side
    54,840.15x = 2,343,606,602.48
  5. Step 5: Solve for x
    x = 2,343,606,602.48/54,840.15
  6. Step 6: Final answer
    x = 42,735.23

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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.