Home / 57,421.98-85,911.30-57,274.29

Finding the Fourth Proportional to 57,421.98, 85,911.30 and 57,274.29

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Solution

The fourth proportional to 57,421.98, 85,911.30 and 57,274.29 is: 85,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.98 : 85,911.30 = 57,274.29 : x
  2. Step 2: Convert to fraction form
    57,421.98/85,911.30 = 57,274.29/x
  3. Step 3: Cross multiply
    57,421.98x = 85,911.30 × 57,274.29
  4. Step 4: Simplify right side
    57,421.98x = 4,920,508,710.48
  5. Step 5: Solve for x
    x = 4,920,508,710.48/57,421.98
  6. Step 6: Final answer
    x = 85,690.34

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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.