Home / 78,962.13-108,969.18-43,153.65

Finding the Fourth Proportional to 78,962.13, 108,969.18 and 43,153.65

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Solution

The fourth proportional to 78,962.13, 108,969.18 and 43,153.65 is: 59,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,962.13 : 108,969.18 = 43,153.65 : x
  2. Step 2: Convert to fraction form
    78,962.13/108,969.18 = 43,153.65/x
  3. Step 3: Cross multiply
    78,962.13x = 108,969.18 × 43,153.65
  4. Step 4: Simplify right side
    78,962.13x = 4,702,417,854.51
  5. Step 5: Solve for x
    x = 4,702,417,854.51/78,962.13
  6. Step 6: Final answer
    x = 59,552.82

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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.