Home / 85,506.10-118,077.15-57,293.80

Finding the Fourth Proportional to 85,506.10, 118,077.15 and 57,293.80

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Solution

The fourth proportional to 85,506.10, 118,077.15 and 57,293.80 is: 79,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,506.10 : 118,077.15 = 57,293.80 : x
  2. Step 2: Convert to fraction form
    85,506.10/118,077.15 = 57,293.80/x
  3. Step 3: Cross multiply
    85,506.10x = 118,077.15 × 57,293.80
  4. Step 4: Simplify right side
    85,506.10x = 6,765,088,616.67
  5. Step 5: Solve for x
    x = 6,765,088,616.67/85,506.10
  6. Step 6: Final answer
    x = 79,118.20

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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.