Home / 86,002.21-118,686.05-47,762.39

Finding the Fourth Proportional to 86,002.21, 118,686.05 and 47,762.39

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Solution

The fourth proportional to 86,002.21, 118,686.05 and 47,762.39 is: 65,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,002.21 : 118,686.05 = 47,762.39 : x
  2. Step 2: Convert to fraction form
    86,002.21/118,686.05 = 47,762.39/x
  3. Step 3: Cross multiply
    86,002.21x = 118,686.05 × 47,762.39
  4. Step 4: Simplify right side
    86,002.21x = 5,668,729,465.56
  5. Step 5: Solve for x
    x = 5,668,729,465.56/86,002.21
  6. Step 6: Final answer
    x = 65,913.77

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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.