Home / 56,649.24-78,172.74-31,498.20

Finding the Fourth Proportional to 56,649.24, 78,172.74 and 31,498.20

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Solution

The fourth proportional to 56,649.24, 78,172.74 and 31,498.20 is: 43,465.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,649.24 : 78,172.74 = 31,498.20 : x
  2. Step 2: Convert to fraction form
    56,649.24/78,172.74 = 31,498.20/x
  3. Step 3: Cross multiply
    56,649.24x = 78,172.74 × 31,498.20
  4. Step 4: Simplify right side
    56,649.24x = 2,462,300,599.07
  5. Step 5: Solve for x
    x = 2,462,300,599.07/56,649.24
  6. Step 6: Final answer
    x = 43,465.73

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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.