Home / 45,121.41-67,681.30-15,538.59

Finding the Fourth Proportional to 45,121.41, 67,681.30 and 15,538.59

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Solution

The fourth proportional to 45,121.41, 67,681.30 and 15,538.59 is: 23,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.41 : 67,681.30 = 15,538.59 : x
  2. Step 2: Convert to fraction form
    45,121.41/67,681.30 = 15,538.59/x
  3. Step 3: Cross multiply
    45,121.41x = 67,681.30 × 15,538.59
  4. Step 4: Simplify right side
    45,121.41x = 1,051,671,971.37
  5. Step 5: Solve for x
    x = 1,051,671,971.37/45,121.41
  6. Step 6: Final answer
    x = 23,307.60

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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.