Home / 58,219.20-87,328.80-42,667.20

Finding the Fourth Proportional to 58,219.20, 87,328.80 and 42,667.20

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Solution

The fourth proportional to 58,219.20, 87,328.80 and 42,667.20 is: 64,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,219.20 : 87,328.80 = 42,667.20 : x
  2. Step 2: Convert to fraction form
    58,219.20/87,328.80 = 42,667.20/x
  3. Step 3: Cross multiply
    58,219.20x = 87,328.80 × 42,667.20
  4. Step 4: Simplify right side
    58,219.20x = 3,726,075,375.36
  5. Step 5: Solve for x
    x = 3,726,075,375.36/58,219.20
  6. Step 6: Final answer
    x = 64,000.80

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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.