Home / 52,120.04-78,288.39-42,136.08

Finding the Fourth Proportional to 52,120.04, 78,288.39 and 42,136.08

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Solution

The fourth proportional to 52,120.04, 78,288.39 and 42,136.08 is: 63,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,120.04 : 78,288.39 = 42,136.08 : x
  2. Step 2: Convert to fraction form
    52,120.04/78,288.39 = 42,136.08/x
  3. Step 3: Cross multiply
    52,120.04x = 78,288.39 × 42,136.08
  4. Step 4: Simplify right side
    52,120.04x = 3,298,765,864.11
  5. Step 5: Solve for x
    x = 3,298,765,864.11/52,120.04
  6. Step 6: Final answer
    x = 63,291.70

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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.