Home / 93,729.60-129,345.12-51,287.28

Finding the Fourth Proportional to 93,729.60, 129,345.12 and 51,287.28

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Solution

The fourth proportional to 93,729.60, 129,345.12 and 51,287.28 is: 70,775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,729.60 : 129,345.12 = 51,287.28 : x
  2. Step 2: Convert to fraction form
    93,729.60/129,345.12 = 51,287.28/x
  3. Step 3: Cross multiply
    93,729.60x = 129,345.12 × 51,287.28
  4. Step 4: Simplify right side
    93,729.60x = 6,633,759,386.07
  5. Step 5: Solve for x
    x = 6,633,759,386.07/93,729.60
  6. Step 6: Final answer
    x = 70,775.50

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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.