Home / 45,946.64-68,911.26-12,658.40

Finding the Fourth Proportional to 45,946.64, 68,911.26 and 12,658.40

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Solution

The fourth proportional to 45,946.64, 68,911.26 and 12,658.40 is: 18,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,946.64 : 68,911.26 = 12,658.40 : x
  2. Step 2: Convert to fraction form
    45,946.64/68,911.26 = 12,658.40/x
  3. Step 3: Cross multiply
    45,946.64x = 68,911.26 × 12,658.40
  4. Step 4: Simplify right side
    45,946.64x = 872,306,293.58
  5. Step 5: Solve for x
    x = 872,306,293.58/45,946.64
  6. Step 6: Final answer
    x = 18,985.20

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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.