Home / 93,281.16-128,731.47-53,001.75

Finding the Fourth Proportional to 93,281.16, 128,731.47 and 53,001.75

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Solution

The fourth proportional to 93,281.16, 128,731.47 and 53,001.75 is: 73,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,281.16 : 128,731.47 = 53,001.75 : x
  2. Step 2: Convert to fraction form
    93,281.16/128,731.47 = 53,001.75/x
  3. Step 3: Cross multiply
    93,281.16x = 128,731.47 × 53,001.75
  4. Step 4: Simplify right side
    93,281.16x = 6,822,993,190.07
  5. Step 5: Solve for x
    x = 6,822,993,190.07/93,281.16
  6. Step 6: Final answer
    x = 73,144.39

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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.