Home / 72,027.83-99,405.02-39,768.22

Finding the Fourth Proportional to 72,027.83, 99,405.02 and 39,768.22

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Solution

The fourth proportional to 72,027.83, 99,405.02 and 39,768.22 is: 54,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.83 : 99,405.02 = 39,768.22 : x
  2. Step 2: Convert to fraction form
    72,027.83/99,405.02 = 39,768.22/x
  3. Step 3: Cross multiply
    72,027.83x = 99,405.02 × 39,768.22
  4. Step 4: Simplify right side
    72,027.83x = 3,953,160,368.99
  5. Step 5: Solve for x
    x = 3,953,160,368.99/72,027.83
  6. Step 6: Final answer
    x = 54,883.79

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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.