Home / 56,870.81-85,316.24-19,422.10

Finding the Fourth Proportional to 56,870.81, 85,316.24 and 19,422.10

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Solution

The fourth proportional to 56,870.81, 85,316.24 and 19,422.10 is: 29,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,870.81 : 85,316.24 = 19,422.10 : x
  2. Step 2: Convert to fraction form
    56,870.81/85,316.24 = 19,422.10/x
  3. Step 3: Cross multiply
    56,870.81x = 85,316.24 × 19,422.10
  4. Step 4: Simplify right side
    56,870.81x = 1,657,020,554.44
  5. Step 5: Solve for x
    x = 1,657,020,554.44/56,870.81
  6. Step 6: Final answer
    x = 29,136.58

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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.