Home / 52,205.08-72,077.70-30,991.16

Finding the Fourth Proportional to 52,205.08, 72,077.70 and 30,991.16

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Solution

The fourth proportional to 52,205.08, 72,077.70 and 30,991.16 is: 42,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,205.08 : 72,077.70 = 30,991.16 : x
  2. Step 2: Convert to fraction form
    52,205.08/72,077.70 = 30,991.16/x
  3. Step 3: Cross multiply
    52,205.08x = 72,077.70 × 30,991.16
  4. Step 4: Simplify right side
    52,205.08x = 2,233,771,533.13
  5. Step 5: Solve for x
    x = 2,233,771,533.13/52,205.08
  6. Step 6: Final answer
    x = 42,788.39

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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.