Home / 93,323.13-128,762.83-57,015.23

Finding the Fourth Proportional to 93,323.13, 128,762.83 and 57,015.23

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Solution

The fourth proportional to 93,323.13, 128,762.83 and 57,015.23 is: 78,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,323.13 : 128,762.83 = 57,015.23 : x
  2. Step 2: Convert to fraction form
    93,323.13/128,762.83 = 57,015.23/x
  3. Step 3: Cross multiply
    93,323.13x = 128,762.83 × 57,015.23
  4. Step 4: Simplify right side
    93,323.13x = 7,341,442,082.82
  5. Step 5: Solve for x
    x = 7,341,442,082.82/93,323.13
  6. Step 6: Final answer
    x = 78,666.91

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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.