Home / 55,129.48-76,109.85-42,184.42

Finding the Fourth Proportional to 55,129.48, 76,109.85 and 42,184.42

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Solution

The fourth proportional to 55,129.48, 76,109.85 and 42,184.42 is: 58,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.48 : 76,109.85 = 42,184.42 : x
  2. Step 2: Convert to fraction form
    55,129.48/76,109.85 = 42,184.42/x
  3. Step 3: Cross multiply
    55,129.48x = 76,109.85 × 42,184.42
  4. Step 4: Simplify right side
    55,129.48x = 3,210,649,688.26
  5. Step 5: Solve for x
    x = 3,210,649,688.26/55,129.48
  6. Step 6: Final answer
    x = 58,238.35

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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.