Home / 85,739.79-118,309.68-49,442.58

Finding the Fourth Proportional to 85,739.79, 118,309.68 and 49,442.58

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Solution

The fourth proportional to 85,739.79, 118,309.68 and 49,442.58 is: 68,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.79 : 118,309.68 = 49,442.58 : x
  2. Step 2: Convert to fraction form
    85,739.79/118,309.68 = 49,442.58/x
  3. Step 3: Cross multiply
    85,739.79x = 118,309.68 × 49,442.58
  4. Step 4: Simplify right side
    85,739.79x = 5,849,535,818.17
  5. Step 5: Solve for x
    x = 5,849,535,818.17/85,739.79
  6. Step 6: Final answer
    x = 68,224.28

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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.