Home / 81,210.65-112,071.49-45,402.62

Finding the Fourth Proportional to 81,210.65, 112,071.49 and 45,402.62

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Solution

The fourth proportional to 81,210.65, 112,071.49 and 45,402.62 is: 62,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,210.65 : 112,071.49 = 45,402.62 : x
  2. Step 2: Convert to fraction form
    81,210.65/112,071.49 = 45,402.62/x
  3. Step 3: Cross multiply
    81,210.65x = 112,071.49 × 45,402.62
  4. Step 4: Simplify right side
    81,210.65x = 5,088,338,599.44
  5. Step 5: Solve for x
    x = 5,088,338,599.44/81,210.65
  6. Step 6: Final answer
    x = 62,656.05

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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.