Home / 70,355.34-97,088.40-40,140.05

Finding the Fourth Proportional to 70,355.34, 97,088.40 and 40,140.05

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Solution

The fourth proportional to 70,355.34, 97,088.40 and 40,140.05 is: 55,392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,355.34 : 97,088.40 = 40,140.05 : x
  2. Step 2: Convert to fraction form
    70,355.34/97,088.40 = 40,140.05/x
  3. Step 3: Cross multiply
    70,355.34x = 97,088.40 × 40,140.05
  4. Step 4: Simplify right side
    70,355.34x = 3,897,132,744.98
  5. Step 5: Solve for x
    x = 3,897,132,744.98/70,355.34
  6. Step 6: Final answer
    x = 55,392.14

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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.