Home / 78,678.40-108,567.48-46,841.08

Finding the Fourth Proportional to 78,678.40, 108,567.48 and 46,841.08

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Solution

The fourth proportional to 78,678.40, 108,567.48 and 46,841.08 is: 64,635.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,678.40 : 108,567.48 = 46,841.08 : x
  2. Step 2: Convert to fraction form
    78,678.40/108,567.48 = 46,841.08/x
  3. Step 3: Cross multiply
    78,678.40x = 108,567.48 × 46,841.08
  4. Step 4: Simplify right side
    78,678.40x = 5,085,418,016.08
  5. Step 5: Solve for x
    x = 5,085,418,016.08/78,678.40
  6. Step 6: Final answer
    x = 64,635.50

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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.