Home / 86,699.10-119,630.86-52,689.43

Finding the Fourth Proportional to 86,699.10, 119,630.86 and 52,689.43

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Solution

The fourth proportional to 86,699.10, 119,630.86 and 52,689.43 is: 72,702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,699.10 : 119,630.86 = 52,689.43 : x
  2. Step 2: Convert to fraction form
    86,699.10/119,630.86 = 52,689.43/x
  3. Step 3: Cross multiply
    86,699.10x = 119,630.86 × 52,689.43
  4. Step 4: Simplify right side
    86,699.10x = 6,303,281,841.62
  5. Step 5: Solve for x
    x = 6,303,281,841.62/86,699.10
  6. Step 6: Final answer
    x = 72,702.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.