Home / 45,777.60-68,666.40-28,281.60

Finding the Fourth Proportional to 45,777.60, 68,666.40 and 28,281.60

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Solution

The fourth proportional to 45,777.60, 68,666.40 and 28,281.60 is: 42,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,777.60 : 68,666.40 = 28,281.60 : x
  2. Step 2: Convert to fraction form
    45,777.60/68,666.40 = 28,281.60/x
  3. Step 3: Cross multiply
    45,777.60x = 68,666.40 × 28,281.60
  4. Step 4: Simplify right side
    45,777.60x = 1,941,995,658.24
  5. Step 5: Solve for x
    x = 1,941,995,658.24/45,777.60
  6. Step 6: Final answer
    x = 42,422.40

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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.