Home / 69,641.04-96,154.48-42,819.60

Finding the Fourth Proportional to 69,641.04, 96,154.48 and 42,819.60

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Solution

The fourth proportional to 69,641.04, 96,154.48 and 42,819.60 is: 59,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.04 : 96,154.48 = 42,819.60 : x
  2. Step 2: Convert to fraction form
    69,641.04/96,154.48 = 42,819.60/x
  3. Step 3: Cross multiply
    69,641.04x = 96,154.48 × 42,819.60
  4. Step 4: Simplify right side
    69,641.04x = 4,117,296,371.81
  5. Step 5: Solve for x
    x = 4,117,296,371.81/69,641.04
  6. Step 6: Final answer
    x = 59,121.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.