Home / 64,815.03-89,461.40-42,210.36

Finding the Fourth Proportional to 64,815.03, 89,461.40 and 42,210.36

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Solution

The fourth proportional to 64,815.03, 89,461.40 and 42,210.36 is: 58,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,815.03 : 89,461.40 = 42,210.36 : x
  2. Step 2: Convert to fraction form
    64,815.03/89,461.40 = 42,210.36/x
  3. Step 3: Cross multiply
    64,815.03x = 89,461.40 × 42,210.36
  4. Step 4: Simplify right side
    64,815.03x = 3,776,197,689.05
  5. Step 5: Solve for x
    x = 3,776,197,689.05/64,815.03
  6. Step 6: Final answer
    x = 58,261.14

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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.