Home / 56,355.04-77,770.09-30,863.08

Finding the Fourth Proportional to 56,355.04, 77,770.09 and 30,863.08

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Solution

The fourth proportional to 56,355.04, 77,770.09 and 30,863.08 is: 42,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,355.04 : 77,770.09 = 30,863.08 : x
  2. Step 2: Convert to fraction form
    56,355.04/77,770.09 = 30,863.08/x
  3. Step 3: Cross multiply
    56,355.04x = 77,770.09 × 30,863.08
  4. Step 4: Simplify right side
    56,355.04x = 2,400,224,509.28
  5. Step 5: Solve for x
    x = 2,400,224,509.28/56,355.04
  6. Step 6: Final answer
    x = 42,591.12

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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.