Home / 93,429.32-128,935.20-50,990.60

Finding the Fourth Proportional to 93,429.32, 128,935.20 and 50,990.60

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Solution

The fourth proportional to 93,429.32, 128,935.20 and 50,990.60 is: 70,368.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,429.32 : 128,935.20 = 50,990.60 : x
  2. Step 2: Convert to fraction form
    93,429.32/128,935.20 = 50,990.60/x
  3. Step 3: Cross multiply
    93,429.32x = 128,935.20 × 50,990.60
  4. Step 4: Simplify right side
    93,429.32x = 6,574,483,209.12
  5. Step 5: Solve for x
    x = 6,574,483,209.12/93,429.32
  6. Step 6: Final answer
    x = 70,368.52

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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.