Home / 85,501.74-128,266.40-26,337.39

Finding the Fourth Proportional to 85,501.74, 128,266.40 and 26,337.39

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Solution

The fourth proportional to 85,501.74, 128,266.40 and 26,337.39 is: 39,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,501.74 : 128,266.40 = 26,337.39 : x
  2. Step 2: Convert to fraction form
    85,501.74/128,266.40 = 26,337.39/x
  3. Step 3: Cross multiply
    85,501.74x = 128,266.40 × 26,337.39
  4. Step 4: Simplify right side
    85,501.74x = 3,378,202,200.70
  5. Step 5: Solve for x
    x = 3,378,202,200.70/85,501.74
  6. Step 6: Final answer
    x = 39,510.33

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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.