Home / 85,835.40-118,451-48,108.84

Finding the Fourth Proportional to 85,835.40, 118,451 and 48,108.84

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Solution

The fourth proportional to 85,835.40, 118,451 and 48,108.84 is: 66,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,835.40 : 118,451 = 48,108.84 : x
  2. Step 2: Convert to fraction form
    85,835.40/118,451 = 48,108.84/x
  3. Step 3: Cross multiply
    85,835.40x = 118,451 × 48,108.84
  4. Step 4: Simplify right side
    85,835.40x = 5,698,540,206.84
  5. Step 5: Solve for x
    x = 5,698,540,206.84/85,835.40
  6. Step 6: Final answer
    x = 66,389.16

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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.