Home / 81,425.06-112,368.80-45,614.30

Finding the Fourth Proportional to 81,425.06, 112,368.80 and 45,614.30

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Solution

The fourth proportional to 81,425.06, 112,368.80 and 45,614.30 is: 62,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,425.06 : 112,368.80 = 45,614.30 : x
  2. Step 2: Convert to fraction form
    81,425.06/112,368.80 = 45,614.30/x
  3. Step 3: Cross multiply
    81,425.06x = 112,368.80 × 45,614.30
  4. Step 4: Simplify right side
    81,425.06x = 5,125,624,153.84
  5. Step 5: Solve for x
    x = 5,125,624,153.84/81,425.06
  6. Step 6: Final answer
    x = 62,948.98

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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.