Home / 56,600.02-78,109.53-31,107.11

Finding the Fourth Proportional to 56,600.02, 78,109.53 and 31,107.11

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Solution

The fourth proportional to 56,600.02, 78,109.53 and 31,107.11 is: 42,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,600.02 : 78,109.53 = 31,107.11 : x
  2. Step 2: Convert to fraction form
    56,600.02/78,109.53 = 31,107.11/x
  3. Step 3: Cross multiply
    56,600.02x = 78,109.53 × 31,107.11
  4. Step 4: Simplify right side
    56,600.02x = 2,429,761,937.03
  5. Step 5: Solve for x
    x = 2,429,761,937.03/56,600.02
  6. Step 6: Final answer
    x = 42,928.64

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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.