Home / 78,879.37-108,853.95-43,070.26

Finding the Fourth Proportional to 78,879.37, 108,853.95 and 43,070.26

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Solution

The fourth proportional to 78,879.37, 108,853.95 and 43,070.26 is: 59,437.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,879.37 : 108,853.95 = 43,070.26 : x
  2. Step 2: Convert to fraction form
    78,879.37/108,853.95 = 43,070.26/x
  3. Step 3: Cross multiply
    78,879.37x = 108,853.95 × 43,070.26
  4. Step 4: Simplify right side
    78,879.37x = 4,688,367,928.53
  5. Step 5: Solve for x
    x = 4,688,367,928.53/78,879.37
  6. Step 6: Final answer
    x = 59,437.19

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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.