Home / 65,913.28-90,887.44-42,002.08

Finding the Fourth Proportional to 65,913.28, 90,887.44 and 42,002.08

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Solution

The fourth proportional to 65,913.28, 90,887.44 and 42,002.08 is: 57,916.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,913.28 : 90,887.44 = 42,002.08 : x
  2. Step 2: Convert to fraction form
    65,913.28/90,887.44 = 42,002.08/x
  3. Step 3: Cross multiply
    65,913.28x = 90,887.44 × 42,002.08
  4. Step 4: Simplify right side
    65,913.28x = 3,817,461,525.88
  5. Step 5: Solve for x
    x = 3,817,461,525.88/65,913.28
  6. Step 6: Final answer
    x = 57,916.42

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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.