Home / 66,572.21-91,857.48-37,890.17

Finding the Fourth Proportional to 66,572.21, 91,857.48 and 37,890.17

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Solution

The fourth proportional to 66,572.21, 91,857.48 and 37,890.17 is: 52,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,572.21 : 91,857.48 = 37,890.17 : x
  2. Step 2: Convert to fraction form
    66,572.21/91,857.48 = 37,890.17/x
  3. Step 3: Cross multiply
    66,572.21x = 91,857.48 × 37,890.17
  4. Step 4: Simplify right side
    66,572.21x = 3,480,495,792.76
  5. Step 5: Solve for x
    x = 3,480,495,792.76/66,572.21
  6. Step 6: Final answer
    x = 52,281.51

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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.