Home / 56,015.60-83,999.10-18,561.20

Finding the Fourth Proportional to 56,015.60, 83,999.10 and 18,561.20

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Solution

The fourth proportional to 56,015.60, 83,999.10 and 18,561.20 is: 27,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,015.60 : 83,999.10 = 18,561.20 : x
  2. Step 2: Convert to fraction form
    56,015.60/83,999.10 = 18,561.20/x
  3. Step 3: Cross multiply
    56,015.60x = 83,999.10 × 18,561.20
  4. Step 4: Simplify right side
    56,015.60x = 1,559,124,094.92
  5. Step 5: Solve for x
    x = 1,559,124,094.92/56,015.60
  6. Step 6: Final answer
    x = 27,833.75

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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.