Home / 58,128.16-87,196.56-18,703.84

Finding the Fourth Proportional to 58,128.16, 87,196.56 and 18,703.84

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Solution

The fourth proportional to 58,128.16, 87,196.56 and 18,703.84 is: 28,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,128.16 : 87,196.56 = 18,703.84 : x
  2. Step 2: Convert to fraction form
    58,128.16/87,196.56 = 18,703.84/x
  3. Step 3: Cross multiply
    58,128.16x = 87,196.56 × 18,703.84
  4. Step 4: Simplify right side
    58,128.16x = 1,630,910,506.79
  5. Step 5: Solve for x
    x = 1,630,910,506.79/58,128.16
  6. Step 6: Final answer
    x = 28,057.15

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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.