Home / 93,133.40-128,475.32-54,336.02

Finding the Fourth Proportional to 93,133.40, 128,475.32 and 54,336.02

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Solution

The fourth proportional to 93,133.40, 128,475.32 and 54,336.02 is: 74,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,133.40 : 128,475.32 = 54,336.02 : x
  2. Step 2: Convert to fraction form
    93,133.40/128,475.32 = 54,336.02/x
  3. Step 3: Cross multiply
    93,133.40x = 128,475.32 × 54,336.02
  4. Step 4: Simplify right side
    93,133.40x = 6,980,836,642.97
  5. Step 5: Solve for x
    x = 6,980,836,642.97/93,133.40
  6. Step 6: Final answer
    x = 74,955.25

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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.