Home / 65,921.53-90,971.77-35,706.91

Finding the Fourth Proportional to 65,921.53, 90,971.77 and 35,706.91

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Solution

The fourth proportional to 65,921.53, 90,971.77 and 35,706.91 is: 49,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.53 : 90,971.77 = 35,706.91 : x
  2. Step 2: Convert to fraction form
    65,921.53/90,971.77 = 35,706.91/x
  3. Step 3: Cross multiply
    65,921.53x = 90,971.77 × 35,706.91
  4. Step 4: Simplify right side
    65,921.53x = 3,248,320,803.93
  5. Step 5: Solve for x
    x = 3,248,320,803.93/65,921.53
  6. Step 6: Final answer
    x = 49,275.57

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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.