Home / 93,781.51-129,421.68-51,340.07

Finding the Fourth Proportional to 93,781.51, 129,421.68 and 51,340.07

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Solution

The fourth proportional to 93,781.51, 129,421.68 and 51,340.07 is: 70,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,781.51 : 129,421.68 = 51,340.07 : x
  2. Step 2: Convert to fraction form
    93,781.51/129,421.68 = 51,340.07/x
  3. Step 3: Cross multiply
    93,781.51x = 129,421.68 × 51,340.07
  4. Step 4: Simplify right side
    93,781.51x = 6,644,518,110.72
  5. Step 5: Solve for x
    x = 6,644,518,110.72/93,781.51
  6. Step 6: Final answer
    x = 70,851.05

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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.