Home / 62,219.20-93,328.80-42,390.40

Finding the Fourth Proportional to 62,219.20, 93,328.80 and 42,390.40

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Solution

The fourth proportional to 62,219.20, 93,328.80 and 42,390.40 is: 63,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,219.20 : 93,328.80 = 42,390.40 : x
  2. Step 2: Convert to fraction form
    62,219.20/93,328.80 = 42,390.40/x
  3. Step 3: Cross multiply
    62,219.20x = 93,328.80 × 42,390.40
  4. Step 4: Simplify right side
    62,219.20x = 3,956,245,163.52
  5. Step 5: Solve for x
    x = 3,956,245,163.52/62,219.20
  6. Step 6: Final answer
    x = 63,585.60

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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.