Home / 76,172.40-105,117.18-43,895.16

Finding the Fourth Proportional to 76,172.40, 105,117.18 and 43,895.16

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Solution

The fourth proportional to 76,172.40, 105,117.18 and 43,895.16 is: 60,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,172.40 : 105,117.18 = 43,895.16 : x
  2. Step 2: Convert to fraction form
    76,172.40/105,117.18 = 43,895.16/x
  3. Step 3: Cross multiply
    76,172.40x = 105,117.18 × 43,895.16
  4. Step 4: Simplify right side
    76,172.40x = 4,614,135,434.85
  5. Step 5: Solve for x
    x = 4,614,135,434.85/76,172.40
  6. Step 6: Final answer
    x = 60,574.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.