Home / 45,607.40-68,411.10-28,986.20

Finding the Fourth Proportional to 45,607.40, 68,411.10 and 28,986.20

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Solution

The fourth proportional to 45,607.40, 68,411.10 and 28,986.20 is: 43,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,607.40 : 68,411.10 = 28,986.20 : x
  2. Step 2: Convert to fraction form
    45,607.40/68,411.10 = 28,986.20/x
  3. Step 3: Cross multiply
    45,607.40x = 68,411.10 × 28,986.20
  4. Step 4: Simplify right side
    45,607.40x = 1,982,977,826.82
  5. Step 5: Solve for x
    x = 1,982,977,826.82/45,607.40
  6. Step 6: Final answer
    x = 43,479.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.