Home / 79,130.05-118,690.95-19,966.23

Finding the Fourth Proportional to 79,130.05, 118,690.95 and 19,966.23

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Solution

The fourth proportional to 79,130.05, 118,690.95 and 19,966.23 is: 29,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,130.05 : 118,690.95 = 19,966.23 : x
  2. Step 2: Convert to fraction form
    79,130.05/118,690.95 = 19,966.23/x
  3. Step 3: Cross multiply
    79,130.05x = 118,690.95 × 19,966.23
  4. Step 4: Simplify right side
    79,130.05x = 2,369,810,806.62
  5. Step 5: Solve for x
    x = 2,369,810,806.62/79,130.05
  6. Step 6: Final answer
    x = 29,948.30

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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.