Home / 77,959.87-116,938.77-18,795.07

Finding the Fourth Proportional to 77,959.87, 116,938.77 and 18,795.07

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Solution

The fourth proportional to 77,959.87, 116,938.77 and 18,795.07 is: 28,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,959.87 : 116,938.77 = 18,795.07 : x
  2. Step 2: Convert to fraction form
    77,959.87/116,938.77 = 18,795.07/x
  3. Step 3: Cross multiply
    77,959.87x = 116,938.77 × 18,795.07
  4. Step 4: Simplify right side
    77,959.87x = 2,197,871,783.17
  5. Step 5: Solve for x
    x = 2,197,871,783.17/77,959.87
  6. Step 6: Final answer
    x = 28,192.35

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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.