Home / 56,870.80-85,298.10-19,432.60

Finding the Fourth Proportional to 56,870.80, 85,298.10 and 19,432.60

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Solution

The fourth proportional to 56,870.80, 85,298.10 and 19,432.60 is: 29,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,870.80 : 85,298.10 = 19,432.60 : x
  2. Step 2: Convert to fraction form
    56,870.80/85,298.10 = 19,432.60/x
  3. Step 3: Cross multiply
    56,870.80x = 85,298.10 × 19,432.60
  4. Step 4: Simplify right side
    56,870.80x = 1,657,563,858.06
  5. Step 5: Solve for x
    x = 1,657,563,858.06/56,870.80
  6. Step 6: Final answer
    x = 29,146.13

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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.