Home / 60,628.81-90,948.54-18,518.39

Finding the Fourth Proportional to 60,628.81, 90,948.54 and 18,518.39

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Solution

The fourth proportional to 60,628.81, 90,948.54 and 18,518.39 is: 27,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,628.81 : 90,948.54 = 18,518.39 : x
  2. Step 2: Convert to fraction form
    60,628.81/90,948.54 = 18,518.39/x
  3. Step 3: Cross multiply
    60,628.81x = 90,948.54 × 18,518.39
  4. Step 4: Simplify right side
    60,628.81x = 1,684,220,533.65
  5. Step 5: Solve for x
    x = 1,684,220,533.65/60,628.81
  6. Step 6: Final answer
    x = 27,779.21

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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.