Home / 93,051.76-128,432.09-56,761.23

Finding the Fourth Proportional to 93,051.76, 128,432.09 and 56,761.23

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Solution

The fourth proportional to 93,051.76, 128,432.09 and 56,761.23 is: 78,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,051.76 : 128,432.09 = 56,761.23 : x
  2. Step 2: Convert to fraction form
    93,051.76/128,432.09 = 56,761.23/x
  3. Step 3: Cross multiply
    93,051.76x = 128,432.09 × 56,761.23
  4. Step 4: Simplify right side
    93,051.76x = 7,289,963,060.15
  5. Step 5: Solve for x
    x = 7,289,963,060.15/93,051.76
  6. Step 6: Final answer
    x = 78,343.10

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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.