Home / 77,465.04-116,185.50-21,309.36

Finding the Fourth Proportional to 77,465.04, 116,185.50 and 21,309.36

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Solution

The fourth proportional to 77,465.04, 116,185.50 and 21,309.36 is: 31,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,465.04 : 116,185.50 = 21,309.36 : x
  2. Step 2: Convert to fraction form
    77,465.04/116,185.50 = 21,309.36/x
  3. Step 3: Cross multiply
    77,465.04x = 116,185.50 × 21,309.36
  4. Step 4: Simplify right side
    77,465.04x = 2,475,838,646.28
  5. Step 5: Solve for x
    x = 2,475,838,646.28/77,465.04
  6. Step 6: Final answer
    x = 31,960.72

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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.