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Finding the Fourth Proportional to 65,300.86, 97,947.19 and 38,985.78

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Solution

The fourth proportional to 65,300.86, 97,947.19 and 38,985.78 is: 58,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,300.86 : 97,947.19 = 38,985.78 : x
  2. Step 2: Convert to fraction form
    65,300.86/97,947.19 = 38,985.78/x
  3. Step 3: Cross multiply
    65,300.86x = 97,947.19 × 38,985.78
  4. Step 4: Simplify right side
    65,300.86x = 3,818,547,600.96
  5. Step 5: Solve for x
    x = 3,818,547,600.96/65,300.86
  6. Step 6: Final answer
    x = 58,476.22

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