Home / 56,894.81-78,519.28-31,406.23

Finding the Fourth Proportional to 56,894.81, 78,519.28 and 31,406.23

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Solution

The fourth proportional to 56,894.81, 78,519.28 and 31,406.23 is: 43,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,894.81 : 78,519.28 = 31,406.23 : x
  2. Step 2: Convert to fraction form
    56,894.81/78,519.28 = 31,406.23/x
  3. Step 3: Cross multiply
    56,894.81x = 78,519.28 × 31,406.23
  4. Step 4: Simplify right side
    56,894.81x = 2,465,994,292.30
  5. Step 5: Solve for x
    x = 2,465,994,292.30/56,894.81
  6. Step 6: Final answer
    x = 43,343.05

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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.