Home / 93,139.14-128,528.44-52,850.50

Finding the Fourth Proportional to 93,139.14, 128,528.44 and 52,850.50

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Solution

The fourth proportional to 93,139.14, 128,528.44 and 52,850.50 is: 72,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,139.14 : 128,528.44 = 52,850.50 : x
  2. Step 2: Convert to fraction form
    93,139.14/128,528.44 = 52,850.50/x
  3. Step 3: Cross multiply
    93,139.14x = 128,528.44 × 52,850.50
  4. Step 4: Simplify right side
    93,139.14x = 6,792,792,318.22
  5. Step 5: Solve for x
    x = 6,792,792,318.22/93,139.14
  6. Step 6: Final answer
    x = 72,931.66

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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.