Home / 70,437.18-105,622.32-40,864.08

Finding the Fourth Proportional to 70,437.18, 105,622.32 and 40,864.08

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Solution

The fourth proportional to 70,437.18, 105,622.32 and 40,864.08 is: 61,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,437.18 : 105,622.32 = 40,864.08 : x
  2. Step 2: Convert to fraction form
    70,437.18/105,622.32 = 40,864.08/x
  3. Step 3: Cross multiply
    70,437.18x = 105,622.32 × 40,864.08
  4. Step 4: Simplify right side
    70,437.18x = 4,316,159,087.51
  5. Step 5: Solve for x
    x = 4,316,159,087.51/70,437.18
  6. Step 6: Final answer
    x = 61,276.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.