Home / 86,962.40-130,443.60-55,858.40

Finding the Fourth Proportional to 86,962.40, 130,443.60 and 55,858.40

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Solution

The fourth proportional to 86,962.40, 130,443.60 and 55,858.40 is: 83,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,962.40 : 130,443.60 = 55,858.40 : x
  2. Step 2: Convert to fraction form
    86,962.40/130,443.60 = 55,858.40/x
  3. Step 3: Cross multiply
    86,962.40x = 130,443.60 × 55,858.40
  4. Step 4: Simplify right side
    86,962.40x = 7,286,370,786.24
  5. Step 5: Solve for x
    x = 7,286,370,786.24/86,962.40
  6. Step 6: Final answer
    x = 83,787.60

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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.