Home / 45,530.94-68,331.72-31,588.80

Finding the Fourth Proportional to 45,530.94, 68,331.72 and 31,588.80

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Solution

The fourth proportional to 45,530.94, 68,331.72 and 31,588.80 is: 47,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,530.94 : 68,331.72 = 31,588.80 : x
  2. Step 2: Convert to fraction form
    45,530.94/68,331.72 = 31,588.80/x
  3. Step 3: Cross multiply
    45,530.94x = 68,331.72 × 31,588.80
  4. Step 4: Simplify right side
    45,530.94x = 2,158,517,036.74
  5. Step 5: Solve for x
    x = 2,158,517,036.74/45,530.94
  6. Step 6: Final answer
    x = 47,407.70

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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.