Home / 74,790.34-103,210.77-40,798.84

Finding the Fourth Proportional to 74,790.34, 103,210.77 and 40,798.84

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Solution

The fourth proportional to 74,790.34, 103,210.77 and 40,798.84 is: 56,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,790.34 : 103,210.77 = 40,798.84 : x
  2. Step 2: Convert to fraction form
    74,790.34/103,210.77 = 40,798.84/x
  3. Step 3: Cross multiply
    74,790.34x = 103,210.77 × 40,798.84
  4. Step 4: Simplify right side
    74,790.34x = 4,210,879,691.51
  5. Step 5: Solve for x
    x = 4,210,879,691.51/74,790.34
  6. Step 6: Final answer
    x = 56,302.45

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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.