Home / 56,315.25-77,715.05-31,166.37

Finding the Fourth Proportional to 56,315.25, 77,715.05 and 31,166.37

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Solution

The fourth proportional to 56,315.25, 77,715.05 and 31,166.37 is: 43,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,315.25 : 77,715.05 = 31,166.37 : x
  2. Step 2: Convert to fraction form
    56,315.25/77,715.05 = 31,166.37/x
  3. Step 3: Cross multiply
    56,315.25x = 77,715.05 × 31,166.37
  4. Step 4: Simplify right side
    56,315.25x = 2,422,095,847.04
  5. Step 5: Solve for x
    x = 2,422,095,847.04/56,315.25
  6. Step 6: Final answer
    x = 43,009.59

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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.