Home / 61,438.34-92,173.63-19,316.72

Finding the Fourth Proportional to 61,438.34, 92,173.63 and 19,316.72

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Solution

The fourth proportional to 61,438.34, 92,173.63 and 19,316.72 is: 28,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,438.34 : 92,173.63 = 19,316.72 : x
  2. Step 2: Convert to fraction form
    61,438.34/92,173.63 = 19,316.72/x
  3. Step 3: Cross multiply
    61,438.34x = 92,173.63 × 19,316.72
  4. Step 4: Simplify right side
    61,438.34x = 1,780,492,420.45
  5. Step 5: Solve for x
    x = 1,780,492,420.45/61,438.34
  6. Step 6: Final answer
    x = 28,980.15

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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.