Home / 51,071.74-76,607.36-13,120.98

Finding the Fourth Proportional to 51,071.74, 76,607.36 and 13,120.98

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Solution

The fourth proportional to 51,071.74, 76,607.36 and 13,120.98 is: 19,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.74 : 76,607.36 = 13,120.98 : x
  2. Step 2: Convert to fraction form
    51,071.74/76,607.36 = 13,120.98/x
  3. Step 3: Cross multiply
    51,071.74x = 76,607.36 × 13,120.98
  4. Step 4: Simplify right side
    51,071.74x = 1,005,163,671.22
  5. Step 5: Solve for x
    x = 1,005,163,671.22/51,071.74
  6. Step 6: Final answer
    x = 19,681.41

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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.