Home / 78,701.10-118,051.65-56,466.60

Finding the Fourth Proportional to 78,701.10, 118,051.65 and 56,466.60

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Solution

The fourth proportional to 78,701.10, 118,051.65 and 56,466.60 is: 84,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701.10 : 118,051.65 = 56,466.60 : x
  2. Step 2: Convert to fraction form
    78,701.10/118,051.65 = 56,466.60/x
  3. Step 3: Cross multiply
    78,701.10x = 118,051.65 × 56,466.60
  4. Step 4: Simplify right side
    78,701.10x = 6,665,975,299.89
  5. Step 5: Solve for x
    x = 6,665,975,299.89/78,701.10
  6. Step 6: Final answer
    x = 84,699.90

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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.