Home / 64,990.09-89,686.55-35,182.09

Finding the Fourth Proportional to 64,990.09, 89,686.55 and 35,182.09

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Solution

The fourth proportional to 64,990.09, 89,686.55 and 35,182.09 is: 48,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,990.09 : 89,686.55 = 35,182.09 : x
  2. Step 2: Convert to fraction form
    64,990.09/89,686.55 = 35,182.09/x
  3. Step 3: Cross multiply
    64,990.09x = 89,686.55 × 35,182.09
  4. Step 4: Simplify right side
    64,990.09x = 3,155,359,649.55
  5. Step 5: Solve for x
    x = 3,155,359,649.55/64,990.09
  6. Step 6: Final answer
    x = 48,551.40

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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.