Home / 85,616.53-118,155.04-49,323.40

Finding the Fourth Proportional to 85,616.53, 118,155.04 and 49,323.40

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Solution

The fourth proportional to 85,616.53, 118,155.04 and 49,323.40 is: 68,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,616.53 : 118,155.04 = 49,323.40 : x
  2. Step 2: Convert to fraction form
    85,616.53/118,155.04 = 49,323.40/x
  3. Step 3: Cross multiply
    85,616.53x = 118,155.04 × 49,323.40
  4. Step 4: Simplify right side
    85,616.53x = 5,827,807,881.24
  5. Step 5: Solve for x
    x = 5,827,807,881.24/85,616.53
  6. Step 6: Final answer
    x = 68,068.73

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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.