Home / 55,429.84-76,489.60-30,279.32

Finding the Fourth Proportional to 55,429.84, 76,489.60 and 30,279.32

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Solution

The fourth proportional to 55,429.84, 76,489.60 and 30,279.32 is: 41,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,429.84 : 76,489.60 = 30,279.32 : x
  2. Step 2: Convert to fraction form
    55,429.84/76,489.60 = 30,279.32/x
  3. Step 3: Cross multiply
    55,429.84x = 76,489.60 × 30,279.32
  4. Step 4: Simplify right side
    55,429.84x = 2,316,053,075.07
  5. Step 5: Solve for x
    x = 2,316,053,075.07/55,429.84
  6. Step 6: Final answer
    x = 41,783.51

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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.