Home / 57,106.49-78,770.41-45,803.12

Finding the Fourth Proportional to 57,106.49, 78,770.41 and 45,803.12

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Solution

The fourth proportional to 57,106.49, 78,770.41 and 45,803.12 is: 63,178.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,106.49 : 78,770.41 = 45,803.12 : x
  2. Step 2: Convert to fraction form
    57,106.49/78,770.41 = 45,803.12/x
  3. Step 3: Cross multiply
    57,106.49x = 78,770.41 × 45,803.12
  4. Step 4: Simplify right side
    57,106.49x = 3,607,930,476.40
  5. Step 5: Solve for x
    x = 3,607,930,476.40/57,106.49
  6. Step 6: Final answer
    x = 63,178.99

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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.