Home / 64,663.36-89,259.60-42,307.36

Finding the Fourth Proportional to 64,663.36, 89,259.60 and 42,307.36

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Solution

The fourth proportional to 64,663.36, 89,259.60 and 42,307.36 is: 58,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,663.36 : 89,259.60 = 42,307.36 : x
  2. Step 2: Convert to fraction form
    64,663.36/89,259.60 = 42,307.36/x
  3. Step 3: Cross multiply
    64,663.36x = 89,259.60 × 42,307.36
  4. Step 4: Simplify right side
    64,663.36x = 3,776,338,030.66
  5. Step 5: Solve for x
    x = 3,776,338,030.66/64,663.36
  6. Step 6: Final answer
    x = 58,399.97

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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.