Home / 88,245.47-121,779.69-47,959.23

Finding the Fourth Proportional to 88,245.47, 121,779.69 and 47,959.23

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Solution

The fourth proportional to 88,245.47, 121,779.69 and 47,959.23 is: 66,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,245.47 : 121,779.69 = 47,959.23 : x
  2. Step 2: Convert to fraction form
    88,245.47/121,779.69 = 47,959.23/x
  3. Step 3: Cross multiply
    88,245.47x = 121,779.69 × 47,959.23
  4. Step 4: Simplify right side
    88,245.47x = 5,840,460,162.04
  5. Step 5: Solve for x
    x = 5,840,460,162.04/88,245.47
  6. Step 6: Final answer
    x = 66,184.25

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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.