Home / 85,555.72-118,063.38-47,312.86

Finding the Fourth Proportional to 85,555.72, 118,063.38 and 47,312.86

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Solution

The fourth proportional to 85,555.72, 118,063.38 and 47,312.86 is: 65,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.72 : 118,063.38 = 47,312.86 : x
  2. Step 2: Convert to fraction form
    85,555.72/118,063.38 = 47,312.86/x
  3. Step 3: Cross multiply
    85,555.72x = 118,063.38 × 47,312.86
  4. Step 4: Simplify right side
    85,555.72x = 5,585,916,169.07
  5. Step 5: Solve for x
    x = 5,585,916,169.07/85,555.72
  6. Step 6: Final answer
    x = 65,289.80

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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.