Home / 66,030.31-91,112.20-37,730.53

Finding the Fourth Proportional to 66,030.31, 91,112.20 and 37,730.53

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Solution

The fourth proportional to 66,030.31, 91,112.20 and 37,730.53 is: 52,062.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,030.31 : 91,112.20 = 37,730.53 : x
  2. Step 2: Convert to fraction form
    66,030.31/91,112.20 = 37,730.53/x
  3. Step 3: Cross multiply
    66,030.31x = 91,112.20 × 37,730.53
  4. Step 4: Simplify right side
    66,030.31x = 3,437,711,595.47
  5. Step 5: Solve for x
    x = 3,437,711,595.47/66,030.31
  6. Step 6: Final answer
    x = 52,062.63

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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.