Home / 81,637.02-112,630.14-53,359.02

Finding the Fourth Proportional to 81,637.02, 112,630.14 and 53,359.02

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Solution

The fourth proportional to 81,637.02, 112,630.14 and 53,359.02 is: 73,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,637.02 : 112,630.14 = 53,359.02 : x
  2. Step 2: Convert to fraction form
    81,637.02/112,630.14 = 53,359.02/x
  3. Step 3: Cross multiply
    81,637.02x = 112,630.14 × 53,359.02
  4. Step 4: Simplify right side
    81,637.02x = 6,009,833,892.86
  5. Step 5: Solve for x
    x = 6,009,833,892.86/81,637.02
  6. Step 6: Final answer
    x = 73,616.53

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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.