Home / 85,865.48-118,492.59-47,618.86

Finding the Fourth Proportional to 85,865.48, 118,492.59 and 47,618.86

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Solution

The fourth proportional to 85,865.48, 118,492.59 and 47,618.86 is: 65,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,865.48 : 118,492.59 = 47,618.86 : x
  2. Step 2: Convert to fraction form
    85,865.48/118,492.59 = 47,618.86/x
  3. Step 3: Cross multiply
    85,865.48x = 118,492.59 × 47,618.86
  4. Step 4: Simplify right side
    85,865.48x = 5,642,482,054.25
  5. Step 5: Solve for x
    x = 5,642,482,054.25/85,865.48
  6. Step 6: Final answer
    x = 65,713.04

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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.