Home / 88,090.09-121,564.65-47,803.85

Finding the Fourth Proportional to 88,090.09, 121,564.65 and 47,803.85

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Solution

The fourth proportional to 88,090.09, 121,564.65 and 47,803.85 is: 65,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,090.09 : 121,564.65 = 47,803.85 : x
  2. Step 2: Convert to fraction form
    88,090.09/121,564.65 = 47,803.85/x
  3. Step 3: Cross multiply
    88,090.09x = 121,564.65 × 47,803.85
  4. Step 4: Simplify right side
    88,090.09x = 5,811,257,710.41
  5. Step 5: Solve for x
    x = 5,811,257,710.41/88,090.09
  6. Step 6: Final answer
    x = 65,969.48

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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.