Home / 85,710.96-118,281.47-49,925.57

Finding the Fourth Proportional to 85,710.96, 118,281.47 and 49,925.57

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Solution

The fourth proportional to 85,710.96, 118,281.47 and 49,925.57 is: 68,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,710.96 : 118,281.47 = 49,925.57 : x
  2. Step 2: Convert to fraction form
    85,710.96/118,281.47 = 49,925.57/x
  3. Step 3: Cross multiply
    85,710.96x = 118,281.47 × 49,925.57
  4. Step 4: Simplify right side
    85,710.96x = 5,905,268,969.15
  5. Step 5: Solve for x
    x = 5,905,268,969.15/85,710.96
  6. Step 6: Final answer
    x = 68,897.48

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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.