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Finding the Fourth Proportional to 55,421.40, 83,075.40 and 27,298.20

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Solution

The fourth proportional to 55,421.40, 83,075.40 and 27,298.20 is: 40,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.40 : 83,075.40 = 27,298.20 : x
  2. Step 2: Convert to fraction form
    55,421.40/83,075.40 = 27,298.20/x
  3. Step 3: Cross multiply
    55,421.40x = 83,075.40 × 27,298.20
  4. Step 4: Simplify right side
    55,421.40x = 2,267,808,884.28
  5. Step 5: Solve for x
    x = 2,267,808,884.28/55,421.40
  6. Step 6: Final answer
    x = 40,919.37

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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.