Home / 76,255.48-105,231.06-42,263.26

Finding the Fourth Proportional to 76,255.48, 105,231.06 and 42,263.26

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Solution

The fourth proportional to 76,255.48, 105,231.06 and 42,263.26 is: 58,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,255.48 : 105,231.06 = 42,263.26 : x
  2. Step 2: Convert to fraction form
    76,255.48/105,231.06 = 42,263.26/x
  3. Step 3: Cross multiply
    76,255.48x = 105,231.06 × 42,263.26
  4. Step 4: Simplify right side
    76,255.48x = 4,447,407,648.86
  5. Step 5: Solve for x
    x = 4,447,407,648.86/76,255.48
  6. Step 6: Final answer
    x = 58,322.47

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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.