Home / 65,192.12-89,966.40-42,545.60

Finding the Fourth Proportional to 65,192.12, 89,966.40 and 42,545.60

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Solution

The fourth proportional to 65,192.12, 89,966.40 and 42,545.60 is: 58,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,192.12 : 89,966.40 = 42,545.60 : x
  2. Step 2: Convert to fraction form
    65,192.12/89,966.40 = 42,545.60/x
  3. Step 3: Cross multiply
    65,192.12x = 89,966.40 × 42,545.60
  4. Step 4: Simplify right side
    65,192.12x = 3,827,674,467.84
  5. Step 5: Solve for x
    x = 3,827,674,467.84/65,192.12
  6. Step 6: Final answer
    x = 58,713.76

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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.