Home / 66,550.72-91,838.64-38,256.16

Finding the Fourth Proportional to 66,550.72, 91,838.64 and 38,256.16

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Solution

The fourth proportional to 66,550.72, 91,838.64 and 38,256.16 is: 52,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,550.72 : 91,838.64 = 38,256.16 : x
  2. Step 2: Convert to fraction form
    66,550.72/91,838.64 = 38,256.16/x
  3. Step 3: Cross multiply
    66,550.72x = 91,838.64 × 38,256.16
  4. Step 4: Simplify right side
    66,550.72x = 3,513,393,706.02
  5. Step 5: Solve for x
    x = 3,513,393,706.02/66,550.72
  6. Step 6: Final answer
    x = 52,792.72

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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.