Home / 93,085.80-128,309.02-62,861.46

Finding the Fourth Proportional to 93,085.80, 128,309.02 and 62,861.46

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Solution

The fourth proportional to 93,085.80, 128,309.02 and 62,861.46 is: 86,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,085.80 : 128,309.02 = 62,861.46 : x
  2. Step 2: Convert to fraction form
    93,085.80/128,309.02 = 62,861.46/x
  3. Step 3: Cross multiply
    93,085.80x = 128,309.02 × 62,861.46
  4. Step 4: Simplify right side
    93,085.80x = 8,065,692,328.37
  5. Step 5: Solve for x
    x = 8,065,692,328.37/93,085.80
  6. Step 6: Final answer
    x = 86,647.93

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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.