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Finding the Fourth Proportional to 115,510.40, 173,330.40 and 48,939.20

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Solution

The fourth proportional to 115,510.40, 173,330.40 and 48,939.20 is: 73,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,510.40 : 173,330.40 = 48,939.20 : x
  2. Step 2: Convert to fraction form
    115,510.40/173,330.40 = 48,939.20/x
  3. Step 3: Cross multiply
    115,510.40x = 173,330.40 × 48,939.20
  4. Step 4: Simplify right side
    115,510.40x = 8,482,651,111.68
  5. Step 5: Solve for x
    x = 8,482,651,111.68/115,510.40
  6. Step 6: Final answer
    x = 73,436.25

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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.