Home / 86,055.86-118,756.69-47,821.63

Finding the Fourth Proportional to 86,055.86, 118,756.69 and 47,821.63

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Solution

The fourth proportional to 86,055.86, 118,756.69 and 47,821.63 is: 65,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,055.86 : 118,756.69 = 47,821.63 : x
  2. Step 2: Convert to fraction form
    86,055.86/118,756.69 = 47,821.63/x
  3. Step 3: Cross multiply
    86,055.86x = 118,756.69 × 47,821.63
  4. Step 4: Simplify right side
    86,055.86x = 5,679,138,489.20
  5. Step 5: Solve for x
    x = 5,679,138,489.20/86,055.86
  6. Step 6: Final answer
    x = 65,993.63

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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.