Home / 66,143.56-99,135.96-38,076.16

Finding the Fourth Proportional to 66,143.56, 99,135.96 and 38,076.16

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Solution

The fourth proportional to 66,143.56, 99,135.96 and 38,076.16 is: 57,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143.56 : 99,135.96 = 38,076.16 : x
  2. Step 2: Convert to fraction form
    66,143.56/99,135.96 = 38,076.16/x
  3. Step 3: Cross multiply
    66,143.56x = 99,135.96 × 38,076.16
  4. Step 4: Simplify right side
    66,143.56x = 3,774,716,674.71
  5. Step 5: Solve for x
    x = 3,774,716,674.71/66,143.56
  6. Step 6: Final answer
    x = 57,068.54

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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.