Home / 58,128.66-87,199.08-20,692.20

Finding the Fourth Proportional to 58,128.66, 87,199.08 and 20,692.20

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Solution

The fourth proportional to 58,128.66, 87,199.08 and 20,692.20 is: 31,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,128.66 : 87,199.08 = 20,692.20 : x
  2. Step 2: Convert to fraction form
    58,128.66/87,199.08 = 20,692.20/x
  3. Step 3: Cross multiply
    58,128.66x = 87,199.08 × 20,692.20
  4. Step 4: Simplify right side
    58,128.66x = 1,804,340,803.18
  5. Step 5: Solve for x
    x = 1,804,340,803.18/58,128.66
  6. Step 6: Final answer
    x = 31,040.47

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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.