Home / 80,783.36-111,245.80-62,848.16

Finding the Fourth Proportional to 80,783.36, 111,245.80 and 62,848.16

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Solution

The fourth proportional to 80,783.36, 111,245.80 and 62,848.16 is: 86,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,783.36 : 111,245.80 = 62,848.16 : x
  2. Step 2: Convert to fraction form
    80,783.36/111,245.80 = 62,848.16/x
  3. Step 3: Cross multiply
    80,783.36x = 111,245.80 × 62,848.16
  4. Step 4: Simplify right side
    80,783.36x = 6,991,593,837.73
  5. Step 5: Solve for x
    x = 6,991,593,837.73/80,783.36
  6. Step 6: Final answer
    x = 86,547.45

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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.