Home / 66,137.28-91,263.12-37,458.24

Finding the Fourth Proportional to 66,137.28, 91,263.12 and 37,458.24

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Solution

The fourth proportional to 66,137.28, 91,263.12 and 37,458.24 is: 51,688.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,137.28 : 91,263.12 = 37,458.24 : x
  2. Step 2: Convert to fraction form
    66,137.28/91,263.12 = 37,458.24/x
  3. Step 3: Cross multiply
    66,137.28x = 91,263.12 × 37,458.24
  4. Step 4: Simplify right side
    66,137.28x = 3,418,555,852.11
  5. Step 5: Solve for x
    x = 3,418,555,852.11/66,137.28
  6. Step 6: Final answer
    x = 51,688.79

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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.