Home / 45,123.13-62,130.83-40,078.58

Finding the Fourth Proportional to 45,123.13, 62,130.83 and 40,078.58

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Solution

The fourth proportional to 45,123.13, 62,130.83 and 40,078.58 is: 55,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,123.13 : 62,130.83 = 40,078.58 : x
  2. Step 2: Convert to fraction form
    45,123.13/62,130.83 = 40,078.58/x
  3. Step 3: Cross multiply
    45,123.13x = 62,130.83 × 40,078.58
  4. Step 4: Simplify right side
    45,123.13x = 2,490,115,240.23
  5. Step 5: Solve for x
    x = 2,490,115,240.23/45,123.13
  6. Step 6: Final answer
    x = 55,184.90

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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.