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Finding the Fourth Proportional to 65,852.57, 90,876.77 and 35,637.89

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Solution

The fourth proportional to 65,852.57, 90,876.77 and 35,637.89 is: 49,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,852.57 : 90,876.77 = 35,637.89 : x
  2. Step 2: Convert to fraction form
    65,852.57/90,876.77 = 35,637.89/x
  3. Step 3: Cross multiply
    65,852.57x = 90,876.77 × 35,637.89
  4. Step 4: Simplify right side
    65,852.57x = 3,238,655,700.24
  5. Step 5: Solve for x
    x = 3,238,655,700.24/65,852.57
  6. Step 6: Final answer
    x = 49,180.40

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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.