Home / 45,749.47-68,312.80-40,367.80

Finding the Fourth Proportional to 45,749.47, 68,312.80 and 40,367.80

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Solution

The fourth proportional to 45,749.47, 68,312.80 and 40,367.80 is: 60,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,749.47 : 68,312.80 = 40,367.80 : x
  2. Step 2: Convert to fraction form
    45,749.47/68,312.80 = 40,367.80/x
  3. Step 3: Cross multiply
    45,749.47x = 68,312.80 × 40,367.80
  4. Step 4: Simplify right side
    45,749.47x = 2,757,637,372.15
  5. Step 5: Solve for x
    x = 2,757,637,372.15/45,749.47
  6. Step 6: Final answer
    x = 60,276.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.