Home / 84,749.10-127,123.65-51,534.30

Finding the Fourth Proportional to 84,749.10, 127,123.65 and 51,534.30

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Solution

The fourth proportional to 84,749.10, 127,123.65 and 51,534.30 is: 77,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,749.10 : 127,123.65 = 51,534.30 : x
  2. Step 2: Convert to fraction form
    84,749.10/127,123.65 = 51,534.30/x
  3. Step 3: Cross multiply
    84,749.10x = 127,123.65 × 51,534.30
  4. Step 4: Simplify right side
    84,749.10x = 6,551,228,316.20
  5. Step 5: Solve for x
    x = 6,551,228,316.20/84,749.10
  6. Step 6: Final answer
    x = 77,301.45

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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.