Home / 66,301.56-91,530.12-51,160.32

Finding the Fourth Proportional to 66,301.56, 91,530.12 and 51,160.32

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Solution

The fourth proportional to 66,301.56, 91,530.12 and 51,160.32 is: 70,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.56 : 91,530.12 = 51,160.32 : x
  2. Step 2: Convert to fraction form
    66,301.56/91,530.12 = 51,160.32/x
  3. Step 3: Cross multiply
    66,301.56x = 91,530.12 × 51,160.32
  4. Step 4: Simplify right side
    66,301.56x = 4,682,710,228.84
  5. Step 5: Solve for x
    x = 4,682,710,228.84/66,301.56
  6. Step 6: Final answer
    x = 70,627.45

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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.