Home / 86,106.08-118,777.76-54,220.16

Finding the Fourth Proportional to 86,106.08, 118,777.76 and 54,220.16

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Solution

The fourth proportional to 86,106.08, 118,777.76 and 54,220.16 is: 74,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,106.08 : 118,777.76 = 54,220.16 : x
  2. Step 2: Convert to fraction form
    86,106.08/118,777.76 = 54,220.16/x
  3. Step 3: Cross multiply
    86,106.08x = 118,777.76 × 54,220.16
  4. Step 4: Simplify right side
    86,106.08x = 6,440,149,151.64
  5. Step 5: Solve for x
    x = 6,440,149,151.64/86,106.08
  6. Step 6: Final answer
    x = 74,793.20

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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.