Home / 66,332.20-91,468.28-51,227.32

Finding the Fourth Proportional to 66,332.20, 91,468.28 and 51,227.32

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Solution

The fourth proportional to 66,332.20, 91,468.28 and 51,227.32 is: 70,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,332.20 : 91,468.28 = 51,227.32 : x
  2. Step 2: Convert to fraction form
    66,332.20/91,468.28 = 51,227.32/x
  3. Step 3: Cross multiply
    66,332.20x = 91,468.28 × 51,227.32
  4. Step 4: Simplify right side
    66,332.20x = 4,685,674,849.41
  5. Step 5: Solve for x
    x = 4,685,674,849.41/66,332.20
  6. Step 6: Final answer
    x = 70,639.52

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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.