Home / 78,437.10-108,245.80-46,165.88

Finding the Fourth Proportional to 78,437.10, 108,245.80 and 46,165.88

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Solution

The fourth proportional to 78,437.10, 108,245.80 and 46,165.88 is: 63,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,437.10 : 108,245.80 = 46,165.88 : x
  2. Step 2: Convert to fraction form
    78,437.10/108,245.80 = 46,165.88/x
  3. Step 3: Cross multiply
    78,437.10x = 108,245.80 × 46,165.88
  4. Step 4: Simplify right side
    78,437.10x = 4,997,262,613.30
  5. Step 5: Solve for x
    x = 4,997,262,613.30/78,437.10
  6. Step 6: Final answer
    x = 63,710.45

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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.