Home / 64,938.96-89,619.84-38,071.68

Finding the Fourth Proportional to 64,938.96, 89,619.84 and 38,071.68

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Solution

The fourth proportional to 64,938.96, 89,619.84 and 38,071.68 is: 52,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,938.96 : 89,619.84 = 38,071.68 : x
  2. Step 2: Convert to fraction form
    64,938.96/89,619.84 = 38,071.68/x
  3. Step 3: Cross multiply
    64,938.96x = 89,619.84 × 38,071.68
  4. Step 4: Simplify right side
    64,938.96x = 3,411,977,870.13
  5. Step 5: Solve for x
    x = 3,411,977,870.13/64,938.96
  6. Step 6: Final answer
    x = 52,541.31

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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.