Home / 55,915.41-83,870.40-20,852.34

Finding the Fourth Proportional to 55,915.41, 83,870.40 and 20,852.34

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Solution

The fourth proportional to 55,915.41, 83,870.40 and 20,852.34 is: 31,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.41 : 83,870.40 = 20,852.34 : x
  2. Step 2: Convert to fraction form
    55,915.41/83,870.40 = 20,852.34/x
  3. Step 3: Cross multiply
    55,915.41x = 83,870.40 × 20,852.34
  4. Step 4: Simplify right side
    55,915.41x = 1,748,894,096.74
  5. Step 5: Solve for x
    x = 1,748,894,096.74/55,915.41
  6. Step 6: Final answer
    x = 31,277.50

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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.