Home / 85,945.76-118,602.86-47,705.20

Finding the Fourth Proportional to 85,945.76, 118,602.86 and 47,705.20

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Solution

The fourth proportional to 85,945.76, 118,602.86 and 47,705.20 is: 65,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,945.76 : 118,602.86 = 47,705.20 : x
  2. Step 2: Convert to fraction form
    85,945.76/118,602.86 = 47,705.20/x
  3. Step 3: Cross multiply
    85,945.76x = 118,602.86 × 47,705.20
  4. Step 4: Simplify right side
    85,945.76x = 5,657,972,563.86
  5. Step 5: Solve for x
    x = 5,657,972,563.86/85,945.76
  6. Step 6: Final answer
    x = 65,831.90

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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.