Home / 84,319.02-126,465.75-31,716.18

Finding the Fourth Proportional to 84,319.02, 126,465.75 and 31,716.18

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Solution

The fourth proportional to 84,319.02, 126,465.75 and 31,716.18 is: 47,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,319.02 : 126,465.75 = 31,716.18 : x
  2. Step 2: Convert to fraction form
    84,319.02/126,465.75 = 31,716.18/x
  3. Step 3: Cross multiply
    84,319.02x = 126,465.75 × 31,716.18
  4. Step 4: Simplify right side
    84,319.02x = 4,011,010,490.84
  5. Step 5: Solve for x
    x = 4,011,010,490.84/84,319.02
  6. Step 6: Final answer
    x = 47,569.46

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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.