Home / 85,683.15-118,255.81-53,423.03

Finding the Fourth Proportional to 85,683.15, 118,255.81 and 53,423.03

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Solution

The fourth proportional to 85,683.15, 118,255.81 and 53,423.03 is: 73,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,683.15 : 118,255.81 = 53,423.03 : x
  2. Step 2: Convert to fraction form
    85,683.15/118,255.81 = 53,423.03/x
  3. Step 3: Cross multiply
    85,683.15x = 118,255.81 × 53,423.03
  4. Step 4: Simplify right side
    85,683.15x = 6,317,583,685.30
  5. Step 5: Solve for x
    x = 6,317,583,685.30/85,683.15
  6. Step 6: Final answer
    x = 73,731.93

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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.