Home / 74,011.43-102,136.35-40,860.66

Finding the Fourth Proportional to 74,011.43, 102,136.35 and 40,860.66

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Solution

The fourth proportional to 74,011.43, 102,136.35 and 40,860.66 is: 56,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,011.43 : 102,136.35 = 40,860.66 : x
  2. Step 2: Convert to fraction form
    74,011.43/102,136.35 = 40,860.66/x
  3. Step 3: Cross multiply
    74,011.43x = 102,136.35 × 40,860.66
  4. Step 4: Simplify right side
    74,011.43x = 4,173,358,824.18
  5. Step 5: Solve for x
    x = 4,173,358,824.18/74,011.43
  6. Step 6: Final answer
    x = 56,388.03

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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.