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Finding the Fourth Proportional to 86,370.71, 129,573.48 and 36,450.86

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Solution

The fourth proportional to 86,370.71, 129,573.48 and 36,450.86 is: 54,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370.71 : 129,573.48 = 36,450.86 : x
  2. Step 2: Convert to fraction form
    86,370.71/129,573.48 = 36,450.86/x
  3. Step 3: Cross multiply
    86,370.71x = 129,573.48 × 36,450.86
  4. Step 4: Simplify right side
    86,370.71x = 4,723,064,779.19
  5. Step 5: Solve for x
    x = 4,723,064,779.19/86,370.71
  6. Step 6: Final answer
    x = 54,683.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.