Home / 42,319.44-63,410.04-26,686.80

Finding the Fourth Proportional to 42,319.44, 63,410.04 and 26,686.80

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Solution

The fourth proportional to 42,319.44, 63,410.04 and 26,686.80 is: 39,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,319.44 : 63,410.04 = 26,686.80 : x
  2. Step 2: Convert to fraction form
    42,319.44/63,410.04 = 26,686.80/x
  3. Step 3: Cross multiply
    42,319.44x = 63,410.04 × 26,686.80
  4. Step 4: Simplify right side
    42,319.44x = 1,692,211,055.47
  5. Step 5: Solve for x
    x = 1,692,211,055.47/42,319.44
  6. Step 6: Final answer
    x = 39,986.61

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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.