Home / 65,139.13-89,885.64-36,457.08

Finding the Fourth Proportional to 65,139.13, 89,885.64 and 36,457.08

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Solution

The fourth proportional to 65,139.13, 89,885.64 and 36,457.08 is: 50,307.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,139.13 : 89,885.64 = 36,457.08 : x
  2. Step 2: Convert to fraction form
    65,139.13/89,885.64 = 36,457.08/x
  3. Step 3: Cross multiply
    65,139.13x = 89,885.64 × 36,457.08
  4. Step 4: Simplify right side
    65,139.13x = 3,276,967,968.33
  5. Step 5: Solve for x
    x = 3,276,967,968.33/65,139.13
  6. Step 6: Final answer
    x = 50,307.21

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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.