Home / 66,145.41-91,281.47-35,931.23

Finding the Fourth Proportional to 66,145.41, 91,281.47 and 35,931.23

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Solution

The fourth proportional to 66,145.41, 91,281.47 and 35,931.23 is: 49,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,145.41 : 91,281.47 = 35,931.23 : x
  2. Step 2: Convert to fraction form
    66,145.41/91,281.47 = 35,931.23/x
  3. Step 3: Cross multiply
    66,145.41x = 91,281.47 × 35,931.23
  4. Step 4: Simplify right side
    66,145.41x = 3,279,855,199.55
  5. Step 5: Solve for x
    x = 3,279,855,199.55/66,145.41
  6. Step 6: Final answer
    x = 49,585.53

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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.