Home / 77,034.16-115,475.64-39,612.16

Finding the Fourth Proportional to 77,034.16, 115,475.64 and 39,612.16

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Solution

The fourth proportional to 77,034.16, 115,475.64 and 39,612.16 is: 59,379.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,034.16 : 115,475.64 = 39,612.16 : x
  2. Step 2: Convert to fraction form
    77,034.16/115,475.64 = 39,612.16/x
  3. Step 3: Cross multiply
    77,034.16x = 115,475.64 × 39,612.16
  4. Step 4: Simplify right side
    77,034.16x = 4,574,239,527.78
  5. Step 5: Solve for x
    x = 4,574,239,527.78/77,034.16
  6. Step 6: Final answer
    x = 59,379.37

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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.