Home / 45,612.36-68,417.02-20,652.40

Finding the Fourth Proportional to 45,612.36, 68,417.02 and 20,652.40

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Solution

The fourth proportional to 45,612.36, 68,417.02 and 20,652.40 is: 30,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,612.36 : 68,417.02 = 20,652.40 : x
  2. Step 2: Convert to fraction form
    45,612.36/68,417.02 = 20,652.40/x
  3. Step 3: Cross multiply
    45,612.36x = 68,417.02 × 20,652.40
  4. Step 4: Simplify right side
    45,612.36x = 1,412,975,663.85
  5. Step 5: Solve for x
    x = 1,412,975,663.85/45,612.36
  6. Step 6: Final answer
    x = 30,977.91

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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.