Home / 66,034.36-99,041.76-21,665.80

Finding the Fourth Proportional to 66,034.36, 99,041.76 and 21,665.80

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Solution

The fourth proportional to 66,034.36, 99,041.76 and 21,665.80 is: 32,495.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.36 : 99,041.76 = 21,665.80 : x
  2. Step 2: Convert to fraction form
    66,034.36/99,041.76 = 21,665.80/x
  3. Step 3: Cross multiply
    66,034.36x = 99,041.76 × 21,665.80
  4. Step 4: Simplify right side
    66,034.36x = 2,145,818,963.81
  5. Step 5: Solve for x
    x = 2,145,818,963.81/66,034.36
  6. Step 6: Final answer
    x = 32,495.49

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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.