Home / 81,210.33-112,070.34-45,400.32

Finding the Fourth Proportional to 81,210.33, 112,070.34 and 45,400.32

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Solution

The fourth proportional to 81,210.33, 112,070.34 and 45,400.32 is: 62,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,210.33 : 112,070.34 = 45,400.32 : x
  2. Step 2: Convert to fraction form
    81,210.33/112,070.34 = 45,400.32/x
  3. Step 3: Cross multiply
    81,210.33x = 112,070.34 × 45,400.32
  4. Step 4: Simplify right side
    81,210.33x = 5,088,029,298.51
  5. Step 5: Solve for x
    x = 5,088,029,298.51/81,210.33
  6. Step 6: Final answer
    x = 62,652.49

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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.