Home / 78,613.16-108,488.26-42,804.68

Finding the Fourth Proportional to 78,613.16, 108,488.26 and 42,804.68

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Solution

The fourth proportional to 78,613.16, 108,488.26 and 42,804.68 is: 59,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,613.16 : 108,488.26 = 42,804.68 : x
  2. Step 2: Convert to fraction form
    78,613.16/108,488.26 = 42,804.68/x
  3. Step 3: Cross multiply
    78,613.16x = 108,488.26 × 42,804.68
  4. Step 4: Simplify right side
    78,613.16x = 4,643,805,253.06
  5. Step 5: Solve for x
    x = 4,643,805,253.06/78,613.16
  6. Step 6: Final answer
    x = 59,071.60

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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.