Home / 65,780.40-98,685.33-30,700.92

Finding the Fourth Proportional to 65,780.40, 98,685.33 and 30,700.92

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Solution

The fourth proportional to 65,780.40, 98,685.33 and 30,700.92 is: 46,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,780.40 : 98,685.33 = 30,700.92 : x
  2. Step 2: Convert to fraction form
    65,780.40/98,685.33 = 30,700.92/x
  3. Step 3: Cross multiply
    65,780.40x = 98,685.33 × 30,700.92
  4. Step 4: Simplify right side
    65,780.40x = 3,029,730,421.50
  5. Step 5: Solve for x
    x = 3,029,730,421.50/65,780.40
  6. Step 6: Final answer
    x = 46,058.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.