Home / 77,715.84-107,280.36-52,579.92

Finding the Fourth Proportional to 77,715.84, 107,280.36 and 52,579.92

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Solution

The fourth proportional to 77,715.84, 107,280.36 and 52,579.92 is: 72,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,715.84 : 107,280.36 = 52,579.92 : x
  2. Step 2: Convert to fraction form
    77,715.84/107,280.36 = 52,579.92/x
  3. Step 3: Cross multiply
    77,715.84x = 107,280.36 × 52,579.92
  4. Step 4: Simplify right side
    77,715.84x = 5,640,792,746.37
  5. Step 5: Solve for x
    x = 5,640,792,746.37/77,715.84
  6. Step 6: Final answer
    x = 72,582.28

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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.