Home / 55,014.63-75,922.00-31,140.80

Finding the Fourth Proportional to 55,014.63, 75,922.00 and 31,140.80

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Solution

The fourth proportional to 55,014.63, 75,922.00 and 31,140.80 is: 42,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,014.63 : 75,922.00 = 31,140.80 : x
  2. Step 2: Convert to fraction form
    55,014.63/75,922.00 = 31,140.80/x
  3. Step 3: Cross multiply
    55,014.63x = 75,922.00 × 31,140.80
  4. Step 4: Simplify right side
    55,014.63x = 2,364,271,360.14
  5. Step 5: Solve for x
    x = 2,364,271,360.14/55,014.63
  6. Step 6: Final answer
    x = 42,975.32

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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.