Home / 93,234.36-128,688.30-57,430.20

Finding the Fourth Proportional to 93,234.36, 128,688.30 and 57,430.20

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Solution

The fourth proportional to 93,234.36, 128,688.30 and 57,430.20 is: 79,269.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,234.36 : 128,688.30 = 57,430.20 : x
  2. Step 2: Convert to fraction form
    93,234.36/128,688.30 = 57,430.20/x
  3. Step 3: Cross multiply
    93,234.36x = 128,688.30 × 57,430.20
  4. Step 4: Simplify right side
    93,234.36x = 7,390,594,806.66
  5. Step 5: Solve for x
    x = 7,390,594,806.66/93,234.36
  6. Step 6: Final answer
    x = 79,269.00

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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.