Home / 61,623.20-92,434.80-20,074.40

Finding the Fourth Proportional to 61,623.20, 92,434.80 and 20,074.40

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Solution

The fourth proportional to 61,623.20, 92,434.80 and 20,074.40 is: 30,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,623.20 : 92,434.80 = 20,074.40 : x
  2. Step 2: Convert to fraction form
    61,623.20/92,434.80 = 20,074.40/x
  3. Step 3: Cross multiply
    61,623.20x = 92,434.80 × 20,074.40
  4. Step 4: Simplify right side
    61,623.20x = 1,855,573,149.12
  5. Step 5: Solve for x
    x = 1,855,573,149.12/61,623.20
  6. Step 6: Final answer
    x = 30,111.60

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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.