Home / 64,997.40-89,700.57-38,130.12

Finding the Fourth Proportional to 64,997.40, 89,700.57 and 38,130.12

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Solution

The fourth proportional to 64,997.40, 89,700.57 and 38,130.12 is: 52,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,997.40 : 89,700.57 = 38,130.12 : x
  2. Step 2: Convert to fraction form
    64,997.40/89,700.57 = 38,130.12/x
  3. Step 3: Cross multiply
    64,997.40x = 89,700.57 × 38,130.12
  4. Step 4: Simplify right side
    64,997.40x = 3,420,293,498.17
  5. Step 5: Solve for x
    x = 3,420,293,498.17/64,997.40
  6. Step 6: Final answer
    x = 52,622.00

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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.