Home / 70,905.13-97,852.93-40,690.20

Finding the Fourth Proportional to 70,905.13, 97,852.93 and 40,690.20

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Solution

The fourth proportional to 70,905.13, 97,852.93 and 40,690.20 is: 56,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,905.13 : 97,852.93 = 40,690.20 : x
  2. Step 2: Convert to fraction form
    70,905.13/97,852.93 = 40,690.20/x
  3. Step 3: Cross multiply
    70,905.13x = 97,852.93 × 40,690.20
  4. Step 4: Simplify right side
    70,905.13x = 3,981,655,557.51
  5. Step 5: Solve for x
    x = 3,981,655,557.51/70,905.13
  6. Step 6: Final answer
    x = 56,154.69

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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.