Home / 72,133.14-99,571.50-64,566.12

Finding the Fourth Proportional to 72,133.14, 99,571.50 and 64,566.12

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Solution

The fourth proportional to 72,133.14, 99,571.50 and 64,566.12 is: 89,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,133.14 : 99,571.50 = 64,566.12 : x
  2. Step 2: Convert to fraction form
    72,133.14/99,571.50 = 64,566.12/x
  3. Step 3: Cross multiply
    72,133.14x = 99,571.50 × 64,566.12
  4. Step 4: Simplify right side
    72,133.14x = 6,428,945,417.58
  5. Step 5: Solve for x
    x = 6,428,945,417.58/72,133.14
  6. Step 6: Final answer
    x = 89,126.10

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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.