Home / 42,459.14-63,688.80-11,294.40

Finding the Fourth Proportional to 42,459.14, 63,688.80 and 11,294.40

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Solution

The fourth proportional to 42,459.14, 63,688.80 and 11,294.40 is: 16,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.14 : 63,688.80 = 11,294.40 : x
  2. Step 2: Convert to fraction form
    42,459.14/63,688.80 = 11,294.40/x
  3. Step 3: Cross multiply
    42,459.14x = 63,688.80 × 11,294.40
  4. Step 4: Simplify right side
    42,459.14x = 719,326,782.72
  5. Step 5: Solve for x
    x = 719,326,782.72/42,459.14
  6. Step 6: Final answer
    x = 16,941.62

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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.