Home / 51,716.32-77,421.39-31,931.26

Finding the Fourth Proportional to 51,716.32, 77,421.39 and 31,931.26

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Solution

The fourth proportional to 51,716.32, 77,421.39 and 31,931.26 is: 47,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,716.32 : 77,421.39 = 31,931.26 : x
  2. Step 2: Convert to fraction form
    51,716.32/77,421.39 = 31,931.26/x
  3. Step 3: Cross multiply
    51,716.32x = 77,421.39 × 31,931.26
  4. Step 4: Simplify right side
    51,716.32x = 2,472,162,533.65
  5. Step 5: Solve for x
    x = 2,472,162,533.65/51,716.32
  6. Step 6: Final answer
    x = 47,802.37

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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.