Home / 81,802.02-112,848.90-47,811.95

Finding the Fourth Proportional to 81,802.02, 112,848.90 and 47,811.95

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Solution

The fourth proportional to 81,802.02, 112,848.90 and 47,811.95 is: 65,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,802.02 : 112,848.90 = 47,811.95 : x
  2. Step 2: Convert to fraction form
    81,802.02/112,848.90 = 47,811.95/x
  3. Step 3: Cross multiply
    81,802.02x = 112,848.90 × 47,811.95
  4. Step 4: Simplify right side
    81,802.02x = 5,395,525,964.36
  5. Step 5: Solve for x
    x = 5,395,525,964.36/81,802.02
  6. Step 6: Final answer
    x = 65,958.35

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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.