Home / 78,442.48-108,278.40-46,611.19

Finding the Fourth Proportional to 78,442.48, 108,278.40 and 46,611.19

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Solution

The fourth proportional to 78,442.48, 108,278.40 and 46,611.19 is: 64,339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,442.48 : 108,278.40 = 46,611.19 : x
  2. Step 2: Convert to fraction form
    78,442.48/108,278.40 = 46,611.19/x
  3. Step 3: Cross multiply
    78,442.48x = 108,278.40 × 46,611.19
  4. Step 4: Simplify right side
    78,442.48x = 5,046,985,075.30
  5. Step 5: Solve for x
    x = 5,046,985,075.30/78,442.48
  6. Step 6: Final answer
    x = 64,339.95

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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.