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Finding the Fourth Proportional to 60,779.34, 91,209.74 and 21,336.57

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Solution

The fourth proportional to 60,779.34, 91,209.74 and 21,336.57 is: 32,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,779.34 : 91,209.74 = 21,336.57 : x
  2. Step 2: Convert to fraction form
    60,779.34/91,209.74 = 21,336.57/x
  3. Step 3: Cross multiply
    60,779.34x = 91,209.74 × 21,336.57
  4. Step 4: Simplify right side
    60,779.34x = 1,946,102,895.51
  5. Step 5: Solve for x
    x = 1,946,102,895.51/60,779.34
  6. Step 6: Final answer
    x = 32,019.15

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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.