Home / 65,143.12-89,897.48-35,335.12

Finding the Fourth Proportional to 65,143.12, 89,897.48 and 35,335.12

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Solution

The fourth proportional to 65,143.12, 89,897.48 and 35,335.12 is: 48,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,143.12 : 89,897.48 = 35,335.12 : x
  2. Step 2: Convert to fraction form
    65,143.12/89,897.48 = 35,335.12/x
  3. Step 3: Cross multiply
    65,143.12x = 89,897.48 × 35,335.12
  4. Step 4: Simplify right side
    65,143.12x = 3,176,538,243.50
  5. Step 5: Solve for x
    x = 3,176,538,243.50/65,143.12
  6. Step 6: Final answer
    x = 48,762.45

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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.