Home / 58,621.06-87,939.80-19,170.32

Finding the Fourth Proportional to 58,621.06, 87,939.80 and 19,170.32

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Solution

The fourth proportional to 58,621.06, 87,939.80 and 19,170.32 is: 28,758.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,621.06 : 87,939.80 = 19,170.32 : x
  2. Step 2: Convert to fraction form
    58,621.06/87,939.80 = 19,170.32/x
  3. Step 3: Cross multiply
    58,621.06x = 87,939.80 × 19,170.32
  4. Step 4: Simplify right side
    58,621.06x = 1,685,834,106.74
  5. Step 5: Solve for x
    x = 1,685,834,106.74/58,621.06
  6. Step 6: Final answer
    x = 28,758.16

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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.