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Finding the Fourth Proportional to 86,692.28, 130,075.98 and 30,572.49

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Solution

The fourth proportional to 86,692.28, 130,075.98 and 30,572.49 is: 45,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,692.28 : 130,075.98 = 30,572.49 : x
  2. Step 2: Convert to fraction form
    86,692.28/130,075.98 = 30,572.49/x
  3. Step 3: Cross multiply
    86,692.28x = 130,075.98 × 30,572.49
  4. Step 4: Simplify right side
    86,692.28x = 3,976,746,597.79
  5. Step 5: Solve for x
    x = 3,976,746,597.79/86,692.28
  6. Step 6: Final answer
    x = 45,871.98

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