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Finding the Fourth Proportional to 94,140.40, 141,210.60 and 31,810.90

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Solution

The fourth proportional to 94,140.40, 141,210.60 and 31,810.90 is: 47,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,140.40 : 141,210.60 = 31,810.90 : x
  2. Step 2: Convert to fraction form
    94,140.40/141,210.60 = 31,810.90/x
  3. Step 3: Cross multiply
    94,140.40x = 141,210.60 × 31,810.90
  4. Step 4: Simplify right side
    94,140.40x = 4,492,036,275.54
  5. Step 5: Solve for x
    x = 4,492,036,275.54/94,140.40
  6. Step 6: Final answer
    x = 47,716.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.