Home / 85,229.15-127,880.63-45,740.13

Finding the Fourth Proportional to 85,229.15, 127,880.63 and 45,740.13

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Solution

The fourth proportional to 85,229.15, 127,880.63 and 45,740.13 is: 68,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,229.15 : 127,880.63 = 45,740.13 : x
  2. Step 2: Convert to fraction form
    85,229.15/127,880.63 = 45,740.13/x
  3. Step 3: Cross multiply
    85,229.15x = 127,880.63 × 45,740.13
  4. Step 4: Simplify right side
    85,229.15x = 5,849,276,640.68
  5. Step 5: Solve for x
    x = 5,849,276,640.68/85,229.15
  6. Step 6: Final answer
    x = 68,630.00

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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.