Home / 85,472.45-128,210.33-26,308.06

Finding the Fourth Proportional to 85,472.45, 128,210.33 and 26,308.06

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Solution

The fourth proportional to 85,472.45, 128,210.33 and 26,308.06 is: 39,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,472.45 : 128,210.33 = 26,308.06 : x
  2. Step 2: Convert to fraction form
    85,472.45/128,210.33 = 26,308.06/x
  3. Step 3: Cross multiply
    85,472.45x = 128,210.33 × 26,308.06
  4. Step 4: Simplify right side
    85,472.45x = 3,372,965,374.79
  5. Step 5: Solve for x
    x = 3,372,965,374.79/85,472.45
  6. Step 6: Final answer
    x = 39,462.60

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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.