Home / 85,677.79-128,513.04-23,348.29

Finding the Fourth Proportional to 85,677.79, 128,513.04 and 23,348.29

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Solution

The fourth proportional to 85,677.79, 128,513.04 and 23,348.29 is: 35,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,677.79 : 128,513.04 = 23,348.29 : x
  2. Step 2: Convert to fraction form
    85,677.79/128,513.04 = 23,348.29/x
  3. Step 3: Cross multiply
    85,677.79x = 128,513.04 × 23,348.29
  4. Step 4: Simplify right side
    85,677.79x = 3,000,559,726.70
  5. Step 5: Solve for x
    x = 3,000,559,726.70/85,677.79
  6. Step 6: Final answer
    x = 35,021.44

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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.