Home / 85,316.40-127,973.40-38,569.20

Finding the Fourth Proportional to 85,316.40, 127,973.40 and 38,569.20

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Solution

The fourth proportional to 85,316.40, 127,973.40 and 38,569.20 is: 57,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,316.40 : 127,973.40 = 38,569.20 : x
  2. Step 2: Convert to fraction form
    85,316.40/127,973.40 = 38,569.20/x
  3. Step 3: Cross multiply
    85,316.40x = 127,973.40 × 38,569.20
  4. Step 4: Simplify right side
    85,316.40x = 4,935,831,659.28
  5. Step 5: Solve for x
    x = 4,935,831,659.28/85,316.40
  6. Step 6: Final answer
    x = 57,853.26

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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.