Home / 52,271.44-78,407-21,106.32

Finding the Fourth Proportional to 52,271.44, 78,407 and 21,106.32

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Solution

The fourth proportional to 52,271.44, 78,407 and 21,106.32 is: 31,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,271.44 : 78,407 = 21,106.32 : x
  2. Step 2: Convert to fraction form
    52,271.44/78,407 = 21,106.32/x
  3. Step 3: Cross multiply
    52,271.44x = 78,407 × 21,106.32
  4. Step 4: Simplify right side
    52,271.44x = 1,654,883,232.24
  5. Step 5: Solve for x
    x = 1,654,883,232.24/52,271.44
  6. Step 6: Final answer
    x = 31,659.42

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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.