Home / 70,259.40-96,960.29-38,428.30

Finding the Fourth Proportional to 70,259.40, 96,960.29 and 38,428.30

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Solution

The fourth proportional to 70,259.40, 96,960.29 and 38,428.30 is: 53,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,259.40 : 96,960.29 = 38,428.30 : x
  2. Step 2: Convert to fraction form
    70,259.40/96,960.29 = 38,428.30/x
  3. Step 3: Cross multiply
    70,259.40x = 96,960.29 × 38,428.30
  4. Step 4: Simplify right side
    70,259.40x = 3,726,018,965.88
  5. Step 5: Solve for x
    x = 3,726,018,965.88/70,259.40
  6. Step 6: Final answer
    x = 53,032.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.