Home / 75,316.64-103,940.21-45,106.88

Finding the Fourth Proportional to 75,316.64, 103,940.21 and 45,106.88

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Solution

The fourth proportional to 75,316.64, 103,940.21 and 45,106.88 is: 62,249.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,316.64 : 103,940.21 = 45,106.88 : x
  2. Step 2: Convert to fraction form
    75,316.64/103,940.21 = 45,106.88/x
  3. Step 3: Cross multiply
    75,316.64x = 103,940.21 × 45,106.88
  4. Step 4: Simplify right side
    75,316.64x = 4,688,418,172.71
  5. Step 5: Solve for x
    x = 4,688,418,172.71/75,316.64
  6. Step 6: Final answer
    x = 62,249.44

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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.