Home / 85,291.43-127,953.54-26,127.63

Finding the Fourth Proportional to 85,291.43, 127,953.54 and 26,127.63

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Solution

The fourth proportional to 85,291.43, 127,953.54 and 26,127.63 is: 39,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291.43 : 127,953.54 = 26,127.63 : x
  2. Step 2: Convert to fraction form
    85,291.43/127,953.54 = 26,127.63/x
  3. Step 3: Cross multiply
    85,291.43x = 127,953.54 × 26,127.63
  4. Step 4: Simplify right side
    85,291.43x = 3,343,122,750.31
  5. Step 5: Solve for x
    x = 3,343,122,750.31/85,291.43
  6. Step 6: Final answer
    x = 39,196.47

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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.