Home / 66,607.16-91,913.48-37,929.75

Finding the Fourth Proportional to 66,607.16, 91,913.48 and 37,929.75

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Solution

The fourth proportional to 66,607.16, 91,913.48 and 37,929.75 is: 52,340.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,607.16 : 91,913.48 = 37,929.75 : x
  2. Step 2: Convert to fraction form
    66,607.16/91,913.48 = 37,929.75/x
  3. Step 3: Cross multiply
    66,607.16x = 91,913.48 × 37,929.75
  4. Step 4: Simplify right side
    66,607.16x = 3,486,255,128.38
  5. Step 5: Solve for x
    x = 3,486,255,128.38/66,607.16
  6. Step 6: Final answer
    x = 52,340.54

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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.