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Finding the Fourth Proportional to 64,129.39, 88,510.73 and 42,287.22

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Solution

The fourth proportional to 64,129.39, 88,510.73 and 42,287.22 is: 58,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.39 : 88,510.73 = 42,287.22 : x
  2. Step 2: Convert to fraction form
    64,129.39/88,510.73 = 42,287.22/x
  3. Step 3: Cross multiply
    64,129.39x = 88,510.73 × 42,287.22
  4. Step 4: Simplify right side
    64,129.39x = 3,742,873,038.87
  5. Step 5: Solve for x
    x = 3,742,873,038.87/64,129.39
  6. Step 6: Final answer
    x = 58,364.39

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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.