Home / 93,287.13-128,735.18-53,000.04

Finding the Fourth Proportional to 93,287.13, 128,735.18 and 53,000.04

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Solution

The fourth proportional to 93,287.13, 128,735.18 and 53,000.04 is: 73,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.13 : 128,735.18 = 53,000.04 : x
  2. Step 2: Convert to fraction form
    93,287.13/128,735.18 = 53,000.04/x
  3. Step 3: Cross multiply
    93,287.13x = 128,735.18 × 53,000.04
  4. Step 4: Simplify right side
    93,287.13x = 6,822,969,530.84
  5. Step 5: Solve for x
    x = 6,822,969,530.84/93,287.13
  6. Step 6: Final answer
    x = 73,139.45

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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.